18656812

素因数分解:

$2^2\times {\mathrm{71}}^1\times {\mathrm{179}}^1\times {\mathrm{367}}^1$

素因数の和:621

約数の個数: 24

約数和(自身を含む): 33384960

約数和(自身を除く): 14728148

約数列:

[1, 2, 4, 71, 142, 179, 284, 358, 367, 716, 734, 1468, 12709, 25418, 26057, 50836, 52114, 65693, 104228, 131386, 262772, 4664203, 9328406, 18656812]

約数ペア:

[(1, 18656812), (2, 9328406), (4, 4664203), (71, 262772), (142, 131386), (179, 104228), (284, 65693), (358, 52114), (367, 50836), (716, 26057), (734, 25418), (1468, 12709)]