1028431521

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{123803}}^1$

素因数の和:123893

約数の個数: 24

約数和(自身を含む): 1622327616

約数和(自身を除く): 593896095

約数列:

[1, 3, 9, 13, 39, 71, 117, 213, 639, 923, 2769, 8307, 123803, 371409, 1114227, 1609439, 4828317, 8790013, 14484951, 26370039, 79110117, 114270169, 342810507, 1028431521]

約数ペア:

[(1, 1028431521), (3, 342810507), (9, 114270169), (13, 79110117), (39, 26370039), (71, 14484951), (117, 8790013), (213, 4828317), (639, 1609439), (923, 1114227), (2769, 371409), (8307, 123803)]