213491915

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{359}}^1\times {\mathrm{1307}}^1$

素因数の和:1691

約数の個数: 32

約数和(自身を含む): 316431360

約数和(自身を除く): 102939445

約数列:

[1, 5, 7, 13, 35, 65, 91, 359, 455, 1307, 1795, 2513, 4667, 6535, 9149, 12565, 16991, 23335, 32669, 45745, 84955, 118937, 163345, 469213, 594685, 2346065, 3284491, 6099769, 16422455, 30498845, 42698383, 213491915]

約数ペア:

[(1, 213491915), (5, 42698383), (7, 30498845), (13, 16422455), (35, 6099769), (65, 3284491), (91, 2346065), (359, 594685), (455, 469213), (1307, 163345), (1795, 118937), (2513, 84955), (4667, 45745), (6535, 32669), (9149, 23335), (12565, 16991)]