18554888

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{157}}^1$

素因数の和:270

約数の個数: 64

約数和(自身を含む): 40953600

約数和(自身を除く): 22398712

約数列:

[1, 2, 4, 8, 11, 17, 22, 34, 44, 68, 79, 88, 136, 157, 158, 187, 314, 316, 374, 628, 632, 748, 869, 1256, 1343, 1496, 1727, 1738, 2669, 2686, 3454, 3476, 5338, 5372, 6908, 6952, 10676, 10744, 12403, 13816, 14773, 21352, 24806, 29359, 29546, 49612, 58718, 59092, 99224, 117436, 118184, 136433, 210851, 234872, 272866, 421702, 545732, 843404, 1091464, 1686808, 2319361, 4638722, 9277444, 18554888]

約数ペア:

[(1, 18554888), (2, 9277444), (4, 4638722), (8, 2319361), (11, 1686808), (17, 1091464), (22, 843404), (34, 545732), (44, 421702), (68, 272866), (79, 234872), (88, 210851), (136, 136433), (157, 118184), (158, 117436), (187, 99224), (314, 59092), (316, 58718), (374, 49612), (628, 29546), (632, 29359), (748, 24806), (869, 21352), (1256, 14773), (1343, 13816), (1496, 12403), (1727, 10744), (1738, 10676), (2669, 6952), (2686, 6908), (3454, 5372), (3476, 5338)]