21855130

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{10457}}^1$

素因数の和:10494

約数の個数: 32

約数和(自身を含む): 45178560

約数和(自身を除く): 23323430

約数列:

[1, 2, 5, 10, 11, 19, 22, 38, 55, 95, 110, 190, 209, 418, 1045, 2090, 10457, 20914, 52285, 104570, 115027, 198683, 230054, 397366, 575135, 993415, 1150270, 1986830, 2185513, 4371026, 10927565, 21855130]

約数ペア:

[(1, 21855130), (2, 10927565), (5, 4371026), (10, 2185513), (11, 1986830), (19, 1150270), (22, 993415), (38, 575135), (55, 397366), (95, 230054), (110, 198683), (190, 115027), (209, 104570), (418, 52285), (1045, 20914), (2090, 10457)]