21184864

素因数分解:

$2^5\times {\mathrm{41}}^1\times {\mathrm{67}}^1\times {\mathrm{241}}^1$

素因数の和:359

約数の個数: 48

約数和(自身を含む): 43542576

約数和(自身を除く): 22357712

約数列:

[1, 2, 4, 8, 16, 32, 41, 67, 82, 134, 164, 241, 268, 328, 482, 536, 656, 964, 1072, 1312, 1928, 2144, 2747, 3856, 5494, 7712, 9881, 10988, 16147, 19762, 21976, 32294, 39524, 43952, 64588, 79048, 87904, 129176, 158096, 258352, 316192, 516704, 662027, 1324054, 2648108, 5296216, 10592432, 21184864]

約数ペア:

[(1, 21184864), (2, 10592432), (4, 5296216), (8, 2648108), (16, 1324054), (32, 662027), (41, 516704), (67, 316192), (82, 258352), (134, 158096), (164, 129176), (241, 87904), (268, 79048), (328, 64588), (482, 43952), (536, 39524), (656, 32294), (964, 21976), (1072, 19762), (1312, 16147), (1928, 10988), (2144, 9881), (2747, 7712), (3856, 5494)]