20217984

素因数分解:

$2^7\times 3^1\times {\mathrm{37}}^1\times {\mathrm{1423}}^1$

素因数の和:1477

約数の個数: 64

約数和(自身を含む): 55194240

約数和(自身を除く): 34976256

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 37, 48, 64, 74, 96, 111, 128, 148, 192, 222, 296, 384, 444, 592, 888, 1184, 1423, 1776, 2368, 2846, 3552, 4269, 4736, 5692, 7104, 8538, 11384, 14208, 17076, 22768, 34152, 45536, 52651, 68304, 91072, 105302, 136608, 157953, 182144, 210604, 273216, 315906, 421208, 546432, 631812, 842416, 1263624, 1684832, 2527248, 3369664, 5054496, 6739328, 10108992, 20217984]

約数ペア:

[(1, 20217984), (2, 10108992), (3, 6739328), (4, 5054496), (6, 3369664), (8, 2527248), (12, 1684832), (16, 1263624), (24, 842416), (32, 631812), (37, 546432), (48, 421208), (64, 315906), (74, 273216), (96, 210604), (111, 182144), (128, 157953), (148, 136608), (192, 105302), (222, 91072), (296, 68304), (384, 52651), (444, 45536), (592, 34152), (888, 22768), (1184, 17076), (1423, 14208), (1776, 11384), (2368, 8538), (2846, 7104), (3552, 5692), (4269, 4736)]