21016635

素因数分解:

$3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{103}}^1\times {\mathrm{223}}^1$

素因数の和:395

約数の個数: 32

約数和(自身を含む): 34664448

約数和(自身を除く): 13647813

約数列:

[1, 3, 5, 15, 61, 103, 183, 223, 305, 309, 515, 669, 915, 1115, 1545, 3345, 6283, 13603, 18849, 22969, 31415, 40809, 68015, 68907, 94245, 114845, 204045, 344535, 1401109, 4203327, 7005545, 21016635]

約数ペア:

[(1, 21016635), (3, 7005545), (5, 4203327), (15, 1401109), (61, 344535), (103, 204045), (183, 114845), (223, 94245), (305, 68907), (309, 68015), (515, 40809), (669, 31415), (915, 22969), (1115, 18849), (1545, 13603), (3345, 6283)]