21231890575

素因数分解:

$5^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{691}}^1\times {\mathrm{9241}}^1$

素因数の和:9968

約数の個数: 48

約数和(自身を含む): 31721501440

約数和(自身を除く): 10489610865

約数列:

[1, 5, 7, 19, 25, 35, 95, 133, 175, 475, 665, 691, 3325, 3455, 4837, 9241, 13129, 17275, 24185, 46205, 64687, 65645, 91903, 120925, 175579, 231025, 323435, 328225, 459515, 877895, 1229053, 1617175, 2297575, 4389475, 6145265, 6385531, 30726325, 31927655, 44698717, 121325089, 159638275, 223493585, 606625445, 849275623, 1117467925, 3033127225, 4246378115, 21231890575]

約数ペア:

[(1, 21231890575), (5, 4246378115), (7, 3033127225), (19, 1117467925), (25, 849275623), (35, 606625445), (95, 223493585), (133, 159638275), (175, 121325089), (475, 44698717), (665, 31927655), (691, 30726325), (3325, 6385531), (3455, 6145265), (4837, 4389475), (9241, 2297575), (13129, 1617175), (17275, 1229053), (24185, 877895), (46205, 459515), (64687, 328225), (65645, 323435), (91903, 231025), (120925, 175579)]