21867010

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{269}}^1\times {\mathrm{739}}^1$

素因数の和:1026

約数の個数: 32

約数和(自身を含む): 43156800

約数和(自身を除く): 21289790

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 269, 538, 739, 1345, 1478, 2690, 2959, 3695, 5918, 7390, 8129, 14795, 16258, 29590, 40645, 81290, 198791, 397582, 993955, 1987910, 2186701, 4373402, 10933505, 21867010]

約数ペア:

[(1, 21867010), (2, 10933505), (5, 4373402), (10, 2186701), (11, 1987910), (22, 993955), (55, 397582), (110, 198791), (269, 81290), (538, 40645), (739, 29590), (1345, 16258), (1478, 14795), (2690, 8129), (2959, 7390), (3695, 5918)]