21091935

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{677}}^1$

素因数の和:783

約数の個数: 32

約数和(自身を含む): 35407872

約数和(自身を除く): 14315937

約数列:

[1, 3, 5, 15, 31, 67, 93, 155, 201, 335, 465, 677, 1005, 2031, 2077, 3385, 6231, 10155, 10385, 20987, 31155, 45359, 62961, 104935, 136077, 226795, 314805, 680385, 1406129, 4218387, 7030645, 21091935]

約数ペア:

[(1, 21091935), (3, 7030645), (5, 4218387), (15, 1406129), (31, 680385), (67, 314805), (93, 226795), (155, 136077), (201, 104935), (335, 62961), (465, 45359), (677, 31155), (1005, 20987), (2031, 10385), (2077, 10155), (3385, 6231)]