21281494

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{79}}^1\times {\mathrm{797}}^1$

素因数の和:904

約数の個数: 24

約数和(自身を含む): 35048160

約数和(自身を除く): 13766666

約数列:

[1, 2, 13, 26, 79, 158, 169, 338, 797, 1027, 1594, 2054, 10361, 13351, 20722, 26702, 62963, 125926, 134693, 269386, 818519, 1637038, 10640747, 21281494]

約数ペア:

[(1, 21281494), (2, 10640747), (13, 1637038), (26, 818519), (79, 269386), (158, 134693), (169, 125926), (338, 62963), (797, 26702), (1027, 20722), (1594, 13351), (2054, 10361)]