21553650

素因数分解:

$2^1\times 3^2\times 5^2\times {\mathrm{211}}^1\times {\mathrm{227}}^1$

素因数の和:456

約数の個数: 72

約数和(自身を含む): 58438224

約数和(自身を除く): 36884574

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 25, 30, 45, 50, 75, 90, 150, 211, 225, 227, 422, 450, 454, 633, 681, 1055, 1135, 1266, 1362, 1899, 2043, 2110, 2270, 3165, 3405, 3798, 4086, 5275, 5675, 6330, 6810, 9495, 10215, 10550, 11350, 15825, 17025, 18990, 20430, 31650, 34050, 47475, 47897, 51075, 94950, 95794, 102150, 143691, 239485, 287382, 431073, 478970, 718455, 862146, 1197425, 1436910, 2155365, 2394850, 3592275, 4310730, 7184550, 10776825, 21553650]

約数ペア:

[(1, 21553650), (2, 10776825), (3, 7184550), (5, 4310730), (6, 3592275), (9, 2394850), (10, 2155365), (15, 1436910), (18, 1197425), (25, 862146), (30, 718455), (45, 478970), (50, 431073), (75, 287382), (90, 239485), (150, 143691), (211, 102150), (225, 95794), (227, 94950), (422, 51075), (450, 47897), (454, 47475), (633, 34050), (681, 31650), (1055, 20430), (1135, 18990), (1266, 17025), (1362, 15825), (1899, 11350), (2043, 10550), (2110, 10215), (2270, 9495), (3165, 6810), (3405, 6330), (3798, 5675), (4086, 5275)]