21188050

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{881}}^1$

素因数の和:943

約数の個数: 48

約数和(自身を含む): 43637832

約数和(自身を除く): 22449782

約数列:

[1, 2, 5, 10, 13, 25, 26, 37, 50, 65, 74, 130, 185, 325, 370, 481, 650, 881, 925, 962, 1762, 1850, 2405, 4405, 4810, 8810, 11453, 12025, 22025, 22906, 24050, 32597, 44050, 57265, 65194, 114530, 162985, 286325, 325970, 423761, 572650, 814925, 847522, 1629850, 2118805, 4237610, 10594025, 21188050]

約数ペア:

[(1, 21188050), (2, 10594025), (5, 4237610), (10, 2118805), (13, 1629850), (25, 847522), (26, 814925), (37, 572650), (50, 423761), (65, 325970), (74, 286325), (130, 162985), (185, 114530), (325, 65194), (370, 57265), (481, 44050), (650, 32597), (881, 24050), (925, 22906), (962, 22025), (1762, 12025), (1850, 11453), (2405, 8810), (4405, 4810)]