21080818

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{109}}^1\times {\mathrm{149}}^1$

素因数の和:330

約数の個数: 32

約数和(自身を含む): 35640000

約数和(自身を除く): 14559182

約数列:

[1, 2, 11, 22, 59, 109, 118, 149, 218, 298, 649, 1199, 1298, 1639, 2398, 3278, 6431, 8791, 12862, 16241, 17582, 32482, 70741, 96701, 141482, 178651, 193402, 357302, 958219, 1916438, 10540409, 21080818]

約数ペア:

[(1, 21080818), (2, 10540409), (11, 1916438), (22, 958219), (59, 357302), (109, 193402), (118, 178651), (149, 141482), (218, 96701), (298, 70741), (649, 32482), (1199, 17582), (1298, 16241), (1639, 12862), (2398, 8791), (3278, 6431)]