18763990

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{8647}}^1$

素因数の和:8692

約数の個数: 32

約数和(自身を含む): 39849984

約数和(自身を除く): 21085994

約数列:

[1, 2, 5, 7, 10, 14, 31, 35, 62, 70, 155, 217, 310, 434, 1085, 2170, 8647, 17294, 43235, 60529, 86470, 121058, 268057, 302645, 536114, 605290, 1340285, 1876399, 2680570, 3752798, 9381995, 18763990]

約数ペア:

[(1, 18763990), (2, 9381995), (5, 3752798), (7, 2680570), (10, 1876399), (14, 1340285), (31, 605290), (35, 536114), (62, 302645), (70, 268057), (155, 121058), (217, 86470), (310, 60529), (434, 43235), (1085, 17294), (2170, 8647)]