21391566

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{151}}^1\times {\mathrm{3373}}^1$

素因数の和:3536

約数の個数: 32

約数和(自身を含む): 49233408

約数和(自身を除く): 27841842

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 151, 302, 453, 906, 1057, 2114, 3171, 3373, 6342, 6746, 10119, 20238, 23611, 47222, 70833, 141666, 509323, 1018646, 1527969, 3055938, 3565261, 7130522, 10695783, 21391566]

約数ペア:

[(1, 21391566), (2, 10695783), (3, 7130522), (6, 3565261), (7, 3055938), (14, 1527969), (21, 1018646), (42, 509323), (151, 141666), (302, 70833), (453, 47222), (906, 23611), (1057, 20238), (2114, 10119), (3171, 6746), (3373, 6342)]