21057078

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{8219}}^1$

素因数の和:8292

約数の個数: 32

約数和(自身を含む): 48925440

約数和(自身を除く): 27868362

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 61, 122, 183, 366, 427, 854, 1281, 2562, 8219, 16438, 24657, 49314, 57533, 115066, 172599, 345198, 501359, 1002718, 1504077, 3008154, 3509513, 7019026, 10528539, 21057078]

約数ペア:

[(1, 21057078), (2, 10528539), (3, 7019026), (6, 3509513), (7, 3008154), (14, 1504077), (21, 1002718), (42, 501359), (61, 345198), (122, 172599), (183, 115066), (366, 57533), (427, 49314), (854, 24657), (1281, 16438), (2562, 8219)]