18193455

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{223}}^1$

素因数の和:285

約数の個数: 72

約数和(自身を含む): 37844352

約数和(自身を除く): 19650897

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 37, 45, 49, 63, 105, 111, 147, 185, 223, 245, 259, 315, 333, 441, 555, 669, 735, 777, 1115, 1295, 1561, 1665, 1813, 2007, 2205, 2331, 3345, 3885, 4683, 5439, 7805, 8251, 9065, 10035, 10927, 11655, 14049, 16317, 23415, 24753, 27195, 32781, 41255, 54635, 57757, 70245, 74259, 81585, 98343, 123765, 163905, 173271, 288785, 371295, 404299, 491715, 519813, 866355, 1212897, 2021495, 2599065, 3638691, 6064485, 18193455]

約数ペア:

[(1, 18193455), (3, 6064485), (5, 3638691), (7, 2599065), (9, 2021495), (15, 1212897), (21, 866355), (35, 519813), (37, 491715), (45, 404299), (49, 371295), (63, 288785), (105, 173271), (111, 163905), (147, 123765), (185, 98343), (223, 81585), (245, 74259), (259, 70245), (315, 57757), (333, 54635), (441, 41255), (555, 32781), (669, 27195), (735, 24753), (777, 23415), (1115, 16317), (1295, 14049), (1561, 11655), (1665, 10927), (1813, 10035), (2007, 9065), (2205, 8251), (2331, 7805), (3345, 5439), (3885, 4683)]