21489300

素因数分解:

$2^2\times 3^4\times 5^2\times 7^1\times {\mathrm{379}}^1$

素因数の和:412

約数の個数: 180

約数和(自身を含む): 79821280

約数和(自身を除く): 58331980

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 25, 27, 28, 30, 35, 36, 42, 45, 50, 54, 60, 63, 70, 75, 81, 84, 90, 100, 105, 108, 126, 135, 140, 150, 162, 175, 180, 189, 210, 225, 252, 270, 300, 315, 324, 350, 378, 379, 405, 420, 450, 525, 540, 567, 630, 675, 700, 756, 758, 810, 900, 945, 1050, 1134, 1137, 1260, 1350, 1516, 1575, 1620, 1890, 1895, 2025, 2100, 2268, 2274, 2653, 2700, 2835, 3150, 3411, 3780, 3790, 4050, 4548, 4725, 5306, 5670, 5685, 6300, 6822, 7580, 7959, 8100, 9450, 9475, 10233, 10612, 11340, 11370, 13265, 13644, 14175, 15918, 17055, 18900, 18950, 20466, 22740, 23877, 26530, 28350, 28425, 30699, 31836, 34110, 37900, 39795, 40932, 47754, 51165, 53060, 56700, 56850, 61398, 66325, 68220, 71631, 79590, 85275, 95508, 102330, 113700, 119385, 122796, 132650, 143262, 153495, 159180, 170550, 198975, 204660, 214893, 238770, 255825, 265300, 286524, 306990, 341100, 358155, 397950, 429786, 477540, 511650, 596925, 613980, 716310, 767475, 795900, 859572, 1023300, 1074465, 1193850, 1432620, 1534950, 1790775, 2148930, 2387700, 3069900, 3581550, 4297860, 5372325, 7163100, 10744650, 21489300]

約数ペア:

[(1, 21489300), (2, 10744650), (3, 7163100), (4, 5372325), (5, 4297860), (6, 3581550), (7, 3069900), (9, 2387700), (10, 2148930), (12, 1790775), (14, 1534950), (15, 1432620), (18, 1193850), (20, 1074465), (21, 1023300), (25, 859572), (27, 795900), (28, 767475), (30, 716310), (35, 613980), (36, 596925), (42, 511650), (45, 477540), (50, 429786), (54, 397950), (60, 358155), (63, 341100), (70, 306990), (75, 286524), (81, 265300), (84, 255825), (90, 238770), (100, 214893), (105, 204660), (108, 198975), (126, 170550), (135, 159180), (140, 153495), (150, 143262), (162, 132650), (175, 122796), (180, 119385), (189, 113700), (210, 102330), (225, 95508), (252, 85275), (270, 79590), (300, 71631), (315, 68220), (324, 66325), (350, 61398), (378, 56850), (379, 56700), (405, 53060), (420, 51165), (450, 47754), (525, 40932), (540, 39795), (567, 37900), (630, 34110), (675, 31836), (700, 30699), (756, 28425), (758, 28350), (810, 26530), (900, 23877), (945, 22740), (1050, 20466), (1134, 18950), (1137, 18900), (1260, 17055), (1350, 15918), (1516, 14175), (1575, 13644), (1620, 13265), (1890, 11370), (1895, 11340), (2025, 10612), (2100, 10233), (2268, 9475), (2274, 9450), (2653, 8100), (2700, 7959), (2835, 7580), (3150, 6822), (3411, 6300), (3780, 5685), (3790, 5670), (4050, 5306), (4548, 4725)]