27999915

素因数分解:

$3^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{431}}^1$

素因数の和:571

約数の個数: 32

約数和(自身を含む): 46282752

約数和(自身を除く): 18282837

約数列:

[1, 3, 5, 15, 61, 71, 183, 213, 305, 355, 431, 915, 1065, 1293, 2155, 4331, 6465, 12993, 21655, 26291, 30601, 64965, 78873, 91803, 131455, 153005, 394365, 459015, 1866661, 5599983, 9333305, 27999915]

約数ペア:

[(1, 27999915), (3, 9333305), (5, 5599983), (15, 1866661), (61, 459015), (71, 394365), (183, 153005), (213, 131455), (305, 91803), (355, 78873), (431, 64965), (915, 30601), (1065, 26291), (1293, 21655), (2155, 12993), (4331, 6465)]