21351804

素因数分解:

$2^2\times 3^1\times {\mathrm{79}}^1\times {\mathrm{101}}^1\times {\mathrm{223}}^1$

素因数の和:410

約数の個数: 48

約数和(自身を含む): 51179520

約数和(自身を除く): 29827716

約数列:

[1, 2, 3, 4, 6, 12, 79, 101, 158, 202, 223, 237, 303, 316, 404, 446, 474, 606, 669, 892, 948, 1212, 1338, 2676, 7979, 15958, 17617, 22523, 23937, 31916, 35234, 45046, 47874, 52851, 67569, 70468, 90092, 95748, 105702, 135138, 211404, 270276, 1779317, 3558634, 5337951, 7117268, 10675902, 21351804]

約数ペア:

[(1, 21351804), (2, 10675902), (3, 7117268), (4, 5337951), (6, 3558634), (12, 1779317), (79, 270276), (101, 211404), (158, 135138), (202, 105702), (223, 95748), (237, 90092), (303, 70468), (316, 67569), (404, 52851), (446, 47874), (474, 45046), (606, 35234), (669, 31916), (892, 23937), (948, 22523), (1212, 17617), (1338, 15958), (2676, 7979)]