21711415

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{227}}^1$

素因数の和:327

約数の個数: 32

約数和(自身を含む): 29942784

約数和(自身を除く): 8231369

約数列:

[1, 5, 11, 37, 47, 55, 185, 227, 235, 407, 517, 1135, 1739, 2035, 2497, 2585, 8399, 8695, 10669, 12485, 19129, 41995, 53345, 92389, 95645, 117359, 394753, 461945, 586795, 1973765, 4342283, 21711415]

約数ペア:

[(1, 21711415), (5, 4342283), (11, 1973765), (37, 586795), (47, 461945), (55, 394753), (185, 117359), (227, 95645), (235, 92389), (407, 53345), (517, 41995), (1135, 19129), (1739, 12485), (2035, 10669), (2497, 8695), (2585, 8399)]