18774728

素因数分解:

$2^3\times 7^1\times {\mathrm{89}}^1\times {\mathrm{3767}}^1$

素因数の和:3869

約数の個数: 32

約数和(自身を含む): 40694400

約数和(自身を除く): 21919672

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 89, 178, 356, 623, 712, 1246, 2492, 3767, 4984, 7534, 15068, 26369, 30136, 52738, 105476, 210952, 335263, 670526, 1341052, 2346841, 2682104, 4693682, 9387364, 18774728]

約数ペア:

[(1, 18774728), (2, 9387364), (4, 4693682), (7, 2682104), (8, 2346841), (14, 1341052), (28, 670526), (56, 335263), (89, 210952), (178, 105476), (356, 52738), (623, 30136), (712, 26369), (1246, 15068), (2492, 7534), (3767, 4984)]