12641335

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{191}}^1$

素因数の和:295

約数の個数: 32

約数和(自身を含む): 18284544

約数和(自身を除く): 5643209

約数列:

[1, 5, 7, 31, 35, 61, 155, 191, 217, 305, 427, 955, 1085, 1337, 1891, 2135, 5921, 6685, 9455, 11651, 13237, 29605, 41447, 58255, 66185, 81557, 207235, 361181, 407785, 1805905, 2528267, 12641335]

約数ペア:

[(1, 12641335), (5, 2528267), (7, 1805905), (31, 407785), (35, 361181), (61, 207235), (155, 81557), (191, 66185), (217, 58255), (305, 41447), (427, 29605), (955, 13237), (1085, 11651), (1337, 9455), (1891, 6685), (2135, 5921)]