18475839

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{113}}^1\times {\mathrm{491}}^1$

素因数の和:647

約数の個数: 24

約数和(自身を含む): 27707472

約数和(自身を除く): 9231633

約数列:

[1, 3, 9, 37, 111, 113, 333, 339, 491, 1017, 1473, 4181, 4419, 12543, 18167, 37629, 54501, 55483, 163503, 166449, 499347, 2052871, 6158613, 18475839]

約数ペア:

[(1, 18475839), (3, 6158613), (9, 2052871), (37, 499347), (111, 166449), (113, 163503), (333, 55483), (339, 54501), (491, 37629), (1017, 18167), (1473, 12543), (4181, 4419)]