81856503

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{3049}}^1$

素因数の和:3231

約数の個数: 24

約数和(自身を含む): 125294000

約数和(自身を除く): 43437497

約数列:

[1, 3, 9, 19, 57, 157, 171, 471, 1413, 2983, 3049, 8949, 9147, 26847, 27441, 57931, 173793, 478693, 521379, 1436079, 4308237, 9095167, 27285501, 81856503]

約数ペア:

[(1, 81856503), (3, 27285501), (9, 9095167), (19, 4308237), (57, 1436079), (157, 521379), (171, 478693), (471, 173793), (1413, 57931), (2983, 27441), (3049, 26847), (8949, 9147)]