21745504

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{163}}^1\times {\mathrm{379}}^1$

素因数の和:563

約数の個数: 48

約数和(自身を含む): 47113920

約数和(自身を除く): 25368416

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 88, 163, 176, 326, 352, 379, 652, 758, 1304, 1516, 1793, 2608, 3032, 3586, 4169, 5216, 6064, 7172, 8338, 12128, 14344, 16676, 28688, 33352, 57376, 61777, 66704, 123554, 133408, 247108, 494216, 679547, 988432, 1359094, 1976864, 2718188, 5436376, 10872752, 21745504]

約数ペア:

[(1, 21745504), (2, 10872752), (4, 5436376), (8, 2718188), (11, 1976864), (16, 1359094), (22, 988432), (32, 679547), (44, 494216), (88, 247108), (163, 133408), (176, 123554), (326, 66704), (352, 61777), (379, 57376), (652, 33352), (758, 28688), (1304, 16676), (1516, 14344), (1793, 12128), (2608, 8338), (3032, 7172), (3586, 6064), (4169, 5216)]