20621184

素因数分解:

$2^7\times 3^1\times {\mathrm{83}}^1\times {\mathrm{647}}^1$

素因数の和:747

約数の個数: 64

約数和(自身を含む): 55520640

約数和(自身を除く): 34899456

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 83, 96, 128, 166, 192, 249, 332, 384, 498, 647, 664, 996, 1294, 1328, 1941, 1992, 2588, 2656, 3882, 3984, 5176, 5312, 7764, 7968, 10352, 10624, 15528, 15936, 20704, 31056, 31872, 41408, 53701, 62112, 82816, 107402, 124224, 161103, 214804, 248448, 322206, 429608, 644412, 859216, 1288824, 1718432, 2577648, 3436864, 5155296, 6873728, 10310592, 20621184]

約数ペア:

[(1, 20621184), (2, 10310592), (3, 6873728), (4, 5155296), (6, 3436864), (8, 2577648), (12, 1718432), (16, 1288824), (24, 859216), (32, 644412), (48, 429608), (64, 322206), (83, 248448), (96, 214804), (128, 161103), (166, 124224), (192, 107402), (249, 82816), (332, 62112), (384, 53701), (498, 41408), (647, 31872), (664, 31056), (996, 20704), (1294, 15936), (1328, 15528), (1941, 10624), (1992, 10352), (2588, 7968), (2656, 7764), (3882, 5312), (3984, 5176)]