21861900

素因数分解:

$2^2\times 3^4\times 5^2\times {\mathrm{2699}}^1$

素因数の和:2725

約数の個数: 90

約数和(自身を含む): 70893900

約数和(自身を除く): 49032000

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 25, 27, 30, 36, 45, 50, 54, 60, 75, 81, 90, 100, 108, 135, 150, 162, 180, 225, 270, 300, 324, 405, 450, 540, 675, 810, 900, 1350, 1620, 2025, 2699, 2700, 4050, 5398, 8097, 8100, 10796, 13495, 16194, 24291, 26990, 32388, 40485, 48582, 53980, 67475, 72873, 80970, 97164, 121455, 134950, 145746, 161940, 202425, 218619, 242910, 269900, 291492, 364365, 404850, 437238, 485820, 607275, 728730, 809700, 874476, 1093095, 1214550, 1457460, 1821825, 2186190, 2429100, 3643650, 4372380, 5465475, 7287300, 10930950, 21861900]

約数ペア:

[(1, 21861900), (2, 10930950), (3, 7287300), (4, 5465475), (5, 4372380), (6, 3643650), (9, 2429100), (10, 2186190), (12, 1821825), (15, 1457460), (18, 1214550), (20, 1093095), (25, 874476), (27, 809700), (30, 728730), (36, 607275), (45, 485820), (50, 437238), (54, 404850), (60, 364365), (75, 291492), (81, 269900), (90, 242910), (100, 218619), (108, 202425), (135, 161940), (150, 145746), (162, 134950), (180, 121455), (225, 97164), (270, 80970), (300, 72873), (324, 67475), (405, 53980), (450, 48582), (540, 40485), (675, 32388), (810, 26990), (900, 24291), (1350, 16194), (1620, 13495), (2025, 10796), (2699, 8100), (2700, 8097), (4050, 5398)]