81419858

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{149}}^1\times {\mathrm{21017}}^1$

素因数の和:21181

約数の個数: 16

約数和(自身を含む): 132413400

約数和(自身を除く): 50993542

約数列:

[1, 2, 13, 26, 149, 298, 1937, 3874, 21017, 42034, 273221, 546442, 3131533, 6263066, 40709929, 81419858]

約数ペア:

[(1, 81419858), (2, 40709929), (13, 6263066), (26, 3131533), (149, 546442), (298, 273221), (1937, 42034), (3874, 21017)]