21316728

素因数分解:

$2^3\times 3^1\times {\mathrm{79}}^1\times {\mathrm{11243}}^1$

素因数の和:11331

約数の個数: 32

約数和(自身を含む): 53971200

約数和(自身を除く): 32654472

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 79, 158, 237, 316, 474, 632, 948, 1896, 11243, 22486, 33729, 44972, 67458, 89944, 134916, 269832, 888197, 1776394, 2664591, 3552788, 5329182, 7105576, 10658364, 21316728]

約数ペア:

[(1, 21316728), (2, 10658364), (3, 7105576), (4, 5329182), (6, 3552788), (8, 2664591), (12, 1776394), (24, 888197), (79, 269832), (158, 134916), (237, 89944), (316, 67458), (474, 44972), (632, 33729), (948, 22486), (1896, 11243)]