21490149142

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{139546423}}^1$

素因数の和:139546443

約数の個数: 16

約数和(自身を含む): 40189370112

約数和(自身を除く): 18699220970

約数列:

[1, 2, 7, 11, 14, 22, 77, 154, 139546423, 279092846, 976824961, 1535010653, 1953649922, 3070021306, 10745074571, 21490149142]

約数ペア:

[(1, 21490149142), (2, 10745074571), (7, 3070021306), (11, 1953649922), (14, 1535010653), (22, 976824961), (77, 279092846), (154, 139546423)]