18999472

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{3037}}^1$

素因数の和:3085

約数の個数: 40

約数和(自身を含む): 40684896

約数和(自身を除く): 21685424

約数列:

[1, 2, 4, 8, 16, 17, 23, 34, 46, 68, 92, 136, 184, 272, 368, 391, 782, 1564, 3037, 3128, 6074, 6256, 12148, 24296, 48592, 51629, 69851, 103258, 139702, 206516, 279404, 413032, 558808, 826064, 1117616, 1187467, 2374934, 4749868, 9499736, 18999472]

約数ペア:

[(1, 18999472), (2, 9499736), (4, 4749868), (8, 2374934), (16, 1187467), (17, 1117616), (23, 826064), (34, 558808), (46, 413032), (68, 279404), (92, 206516), (136, 139702), (184, 103258), (272, 69851), (368, 51629), (391, 48592), (782, 24296), (1564, 12148), (3037, 6256), (3128, 6074)]