20854549905

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{2797391}}^1$

素因数の和:2797477

約数の個数: 32

約数和(自身を含む): 38671147008

約数和(自身を除く): 17816597103

約数列:

[1, 3, 5, 7, 15, 21, 35, 71, 105, 213, 355, 497, 1065, 1491, 2485, 7455, 2797391, 8392173, 13986955, 19581737, 41960865, 58745211, 97908685, 198614761, 293726055, 595844283, 993073805, 1390303327, 2979221415, 4170909981, 6951516635, 20854549905]

約数ペア:

[(1, 20854549905), (3, 6951516635), (5, 4170909981), (7, 2979221415), (15, 1390303327), (21, 993073805), (35, 595844283), (71, 293726055), (105, 198614761), (213, 97908685), (355, 58745211), (497, 41960865), (1065, 19581737), (1491, 13986955), (2485, 8392173), (7455, 2797391)]