18957015

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{5471}}^1$

素因数の和:5500

約数の個数: 48

約数和(自身を含む): 40974336

約数和(自身を除く): 22017321

約数列:

[1, 3, 5, 7, 9, 11, 15, 21, 33, 35, 45, 55, 63, 77, 99, 105, 165, 231, 315, 385, 495, 693, 1155, 3465, 5471, 16413, 27355, 38297, 49239, 60181, 82065, 114891, 180543, 191485, 246195, 300905, 344673, 421267, 541629, 574455, 902715, 1263801, 1723365, 2106335, 2708145, 3791403, 6319005, 18957015]

約数ペア:

[(1, 18957015), (3, 6319005), (5, 3791403), (7, 2708145), (9, 2106335), (11, 1723365), (15, 1263801), (21, 902715), (33, 574455), (35, 541629), (45, 421267), (55, 344673), (63, 300905), (77, 246195), (99, 191485), (105, 180543), (165, 114891), (231, 82065), (315, 60181), (385, 49239), (495, 38297), (693, 27355), (1155, 16413), (3465, 5471)]