7981911

素因数分解:

$3^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{67}}^1$

素因数の和:172

約数の個数: 48

約数和(自身を含む): 14030848

約数和(自身を除く): 6048937

約数列:

[1, 3, 7, 9, 21, 31, 61, 63, 67, 93, 183, 201, 217, 279, 427, 469, 549, 603, 651, 1281, 1407, 1891, 1953, 2077, 3843, 4087, 4221, 5673, 6231, 12261, 13237, 14539, 17019, 18693, 28609, 36783, 39711, 43617, 85827, 119133, 126697, 130851, 257481, 380091, 886879, 1140273, 2660637, 7981911]

約数ペア:

[(1, 7981911), (3, 2660637), (7, 1140273), (9, 886879), (21, 380091), (31, 257481), (61, 130851), (63, 126697), (67, 119133), (93, 85827), (183, 43617), (201, 39711), (217, 36783), (279, 28609), (427, 18693), (469, 17019), (549, 14539), (603, 13237), (651, 12261), (1281, 6231), (1407, 5673), (1891, 4221), (1953, 4087), (2077, 3843)]