17881479

素因数分解:

$3^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1$

素因数の和:138

約数の個数: 80

約数和(自身を含む): 34569216

約数和(自身を除く): 16687737

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 47, 61, 63, 77, 81, 99, 141, 183, 189, 231, 297, 329, 423, 427, 517, 549, 567, 671, 693, 891, 987, 1269, 1281, 1551, 1647, 2013, 2079, 2867, 2961, 3619, 3807, 3843, 4653, 4697, 4941, 6039, 6237, 8601, 8883, 10857, 11529, 13959, 14091, 18117, 20069, 25803, 26649, 31537, 32571, 34587, 41877, 42273, 54351, 60207, 77409, 94611, 97713, 126819, 180621, 220759, 232227, 283833, 293139, 380457, 541863, 662277, 851499, 1625589, 1986831, 2554497, 5960493, 17881479]

約数ペア:

[(1, 17881479), (3, 5960493), (7, 2554497), (9, 1986831), (11, 1625589), (21, 851499), (27, 662277), (33, 541863), (47, 380457), (61, 293139), (63, 283833), (77, 232227), (81, 220759), (99, 180621), (141, 126819), (183, 97713), (189, 94611), (231, 77409), (297, 60207), (329, 54351), (423, 42273), (427, 41877), (517, 34587), (549, 32571), (567, 31537), (671, 26649), (693, 25803), (891, 20069), (987, 18117), (1269, 14091), (1281, 13959), (1551, 11529), (1647, 10857), (2013, 8883), (2079, 8601), (2867, 6237), (2961, 6039), (3619, 4941), (3807, 4697), (3843, 4653)]