21308154

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{8317}}^1$

素因数の和:8390

約数の個数: 32

約数和(自身を含む): 49508736

約数和(自身を除く): 28200582

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 61, 122, 183, 366, 427, 854, 1281, 2562, 8317, 16634, 24951, 49902, 58219, 116438, 174657, 349314, 507337, 1014674, 1522011, 3044022, 3551359, 7102718, 10654077, 21308154]

約数ペア:

[(1, 21308154), (2, 10654077), (3, 7102718), (6, 3551359), (7, 3044022), (14, 1522011), (21, 1014674), (42, 507337), (61, 349314), (122, 174657), (183, 116438), (366, 58219), (427, 49902), (854, 24951), (1281, 16634), (2562, 8317)]