21090408

素因数分解:

$2^3\times 3^1\times {\mathrm{71}}^1\times {\mathrm{12377}}^1$

素因数の和:12457

約数の個数: 32

約数和(自身を含む): 53472960

約数和(自身を除く): 32382552

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 71, 142, 213, 284, 426, 568, 852, 1704, 12377, 24754, 37131, 49508, 74262, 99016, 148524, 297048, 878767, 1757534, 2636301, 3515068, 5272602, 7030136, 10545204, 21090408]

約数ペア:

[(1, 21090408), (2, 10545204), (3, 7030136), (4, 5272602), (6, 3515068), (8, 2636301), (12, 1757534), (24, 878767), (71, 297048), (142, 148524), (213, 99016), (284, 74262), (426, 49508), (568, 37131), (852, 24754), (1704, 12377)]