20181892

素因数分解:

$2^2\times {\mathrm{71}}^1\times {\mathrm{179}}^1\times {\mathrm{397}}^1$

素因数の和:651

約数の個数: 24

約数和(自身を含む): 36106560

約数和(自身を除く): 15924668

約数列:

[1, 2, 4, 71, 142, 179, 284, 358, 397, 716, 794, 1588, 12709, 25418, 28187, 50836, 56374, 71063, 112748, 142126, 284252, 5045473, 10090946, 20181892]

約数ペア:

[(1, 20181892), (2, 10090946), (4, 5045473), (71, 284252), (142, 142126), (179, 112748), (284, 71063), (358, 56374), (397, 50836), (716, 28187), (794, 25418), (1588, 12709)]