21981552

素因数分解:

$2^4\times 3^1\times {\mathrm{37}}^1\times {\mathrm{12377}}^1$

素因数の和:12425

約数の個数: 40

約数和(自身を含む): 58325136

約数和(自身を除く): 36343584

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 37, 48, 74, 111, 148, 222, 296, 444, 592, 888, 1776, 12377, 24754, 37131, 49508, 74262, 99016, 148524, 198032, 297048, 457949, 594096, 915898, 1373847, 1831796, 2747694, 3663592, 5495388, 7327184, 10990776, 21981552]

約数ペア:

[(1, 21981552), (2, 10990776), (3, 7327184), (4, 5495388), (6, 3663592), (8, 2747694), (12, 1831796), (16, 1373847), (24, 915898), (37, 594096), (48, 457949), (74, 297048), (111, 198032), (148, 148524), (222, 99016), (296, 74262), (444, 49508), (592, 37131), (888, 24754), (1776, 12377)]