12457515

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{997}}^1$

素因数の和:1036

約数の個数: 48

約数和(自身を含む): 24574752

約数和(自身を除く): 12117237

約数列:

[1, 3, 5, 7, 15, 17, 21, 35, 49, 51, 85, 105, 119, 147, 245, 255, 357, 595, 735, 833, 997, 1785, 2499, 2991, 4165, 4985, 6979, 12495, 14955, 16949, 20937, 34895, 48853, 50847, 84745, 104685, 118643, 146559, 244265, 254235, 355929, 593215, 732795, 830501, 1779645, 2491503, 4152505, 12457515]

約数ペア:

[(1, 12457515), (3, 4152505), (5, 2491503), (7, 1779645), (15, 830501), (17, 732795), (21, 593215), (35, 355929), (49, 254235), (51, 244265), (85, 146559), (105, 118643), (119, 104685), (147, 84745), (245, 50847), (255, 48853), (357, 34895), (595, 20937), (735, 16949), (833, 14955), (997, 12495), (1785, 6979), (2499, 4985), (2991, 4165)]