21720362

素因数分解:

$2^1\times {\mathrm{29}}^1\times {\mathrm{181}}^1\times {\mathrm{2069}}^1$

素因数の和:2281

約数の個数: 16

約数和(自身を含む): 33906600

約数和(自身を除く): 12186238

約数列:

[1, 2, 29, 58, 181, 362, 2069, 4138, 5249, 10498, 60001, 120002, 374489, 748978, 10860181, 21720362]

約数ペア:

[(1, 21720362), (2, 10860181), (29, 748978), (58, 374489), (181, 120002), (362, 60001), (2069, 10498), (4138, 5249)]