21650385

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{701}}^1$

素因数の和:809

約数の個数: 32

約数和(自身を含む): 36391680

約数和(自身を除く): 14741295

約数列:

[1, 3, 5, 15, 29, 71, 87, 145, 213, 355, 435, 701, 1065, 2059, 2103, 3505, 6177, 10295, 10515, 20329, 30885, 49771, 60987, 101645, 149313, 248855, 304935, 746565, 1443359, 4330077, 7216795, 21650385]

約数ペア:

[(1, 21650385), (3, 7216795), (5, 4330077), (15, 1443359), (29, 746565), (71, 304935), (87, 248855), (145, 149313), (213, 101645), (355, 60987), (435, 49771), (701, 30885), (1065, 20329), (2059, 10515), (2103, 10295), (3505, 6177)]