21753900

素因数分解:

$2^2\times 3^3\times 5^2\times 7^1\times {\mathrm{1151}}^1$

素因数の和:1181

約数の個数: 144

約数和(自身を含む): 79994880

約数和(自身を除く): 58240980

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, 84, 90, 100, 105, 108, 126, 135, 140, 150, 175, 180, 189, 210, 225, 252, 270, 300, 315, 350, 378, 420, 450, 525, 540, 630, 675, 700, 756, 900, 945, 1050, 1151, 1260, 1350, 1575, 1890, 2100, 2302, 2700, 3150, 3453, 3780, 4604, 4725, 5755, 6300, 6906, 8057, 9450, 10359, 11510, 13812, 16114, 17265, 18900, 20718, 23020, 24171, 28775, 31077, 32228, 34530, 40285, 41436, 48342, 51795, 57550, 62154, 69060, 72513, 80570, 86325, 96684, 103590, 115100, 120855, 124308, 145026, 155385, 161140, 172650, 201425, 207180, 217539, 241710, 258975, 290052, 310770, 345300, 362565, 402850, 435078, 483420, 517950, 604275, 621540, 725130, 776925, 805700, 870156, 1035900, 1087695, 1208550, 1450260, 1553850, 1812825, 2175390, 2417100, 3107700, 3625650, 4350780, 5438475, 7251300, 10876950, 21753900]

約数ペア:

[(1, 21753900), (2, 10876950), (3, 7251300), (4, 5438475), (5, 4350780), (6, 3625650), (7, 3107700), (9, 2417100), (10, 2175390), (12, 1812825), (14, 1553850), (15, 1450260), (18, 1208550), (20, 1087695), (21, 1035900), (25, 870156), (27, 805700), (28, 776925), (30, 725130), (35, 621540), (36, 604275), (42, 517950), (45, 483420), (50, 435078), (54, 402850), (60, 362565), (63, 345300), (70, 310770), (75, 290052), (84, 258975), (90, 241710), (100, 217539), (105, 207180), (108, 201425), (126, 172650), (135, 161140), (140, 155385), (150, 145026), (175, 124308), (180, 120855), (189, 115100), (210, 103590), (225, 96684), (252, 86325), (270, 80570), (300, 72513), (315, 69060), (350, 62154), (378, 57550), (420, 51795), (450, 48342), (525, 41436), (540, 40285), (630, 34530), (675, 32228), (700, 31077), (756, 28775), (900, 24171), (945, 23020), (1050, 20718), (1151, 18900), (1260, 17265), (1350, 16114), (1575, 13812), (1890, 11510), (2100, 10359), (2302, 9450), (2700, 8057), (3150, 6906), (3453, 6300), (3780, 5755), (4604, 4725)]