20865942

素因数分解:

$2^1\times 3^2\times {\mathrm{131}}^1\times {\mathrm{8849}}^1$

素因数の和:8988

約数の個数: 24

約数和(自身を含む): 45559800

約数和(自身を除く): 24693858

約数列:

[1, 2, 3, 6, 9, 18, 131, 262, 393, 786, 1179, 2358, 8849, 17698, 26547, 53094, 79641, 159282, 1159219, 2318438, 3477657, 6955314, 10432971, 20865942]

約数ペア:

[(1, 20865942), (2, 10432971), (3, 6955314), (6, 3477657), (9, 2318438), (18, 1159219), (131, 159282), (262, 79641), (393, 53094), (786, 26547), (1179, 17698), (2358, 8849)]