28149121

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{461}}^1$

素因数の和:553

約数の個数: 32

約数和(自身を含む): 38497536

約数和(自身を除く): 10348415

約数列:

[1, 7, 11, 13, 61, 77, 91, 143, 427, 461, 671, 793, 1001, 3227, 4697, 5071, 5551, 5993, 8723, 28121, 35497, 41951, 61061, 65923, 196847, 309331, 365573, 461461, 2165317, 2559011, 4021303, 28149121]

約数ペア:

[(1, 28149121), (7, 4021303), (11, 2559011), (13, 2165317), (61, 461461), (77, 365573), (91, 309331), (143, 196847), (427, 65923), (461, 61061), (671, 41951), (793, 35497), (1001, 28121), (3227, 8723), (4697, 5993), (5071, 5551)]