399355313

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{149}}^1\times {\mathrm{223}}^1$

素因数の和:497

約数の個数: 32

約数和(自身を含む): 493516800

約数和(自身を除く): 94161487

約数列:

[1, 7, 17, 101, 119, 149, 223, 707, 1043, 1561, 1717, 2533, 3791, 12019, 15049, 17731, 22523, 26537, 33227, 105343, 157661, 232589, 255833, 382891, 564859, 1790831, 2680237, 3355927, 3954013, 23491489, 57050759, 399355313]

約数ペア:

[(1, 399355313), (7, 57050759), (17, 23491489), (101, 3954013), (119, 3355927), (149, 2680237), (223, 1790831), (707, 564859), (1043, 382891), (1561, 255833), (1717, 232589), (2533, 157661), (3791, 105343), (12019, 33227), (15049, 26537), (17731, 22523)]