21269930

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{10177}}^1$

素因数の和:10214

約数の個数: 32

約数和(自身を含む): 43968960

約数和(自身を除く): 22699030

約数列:

[1, 2, 5, 10, 11, 19, 22, 38, 55, 95, 110, 190, 209, 418, 1045, 2090, 10177, 20354, 50885, 101770, 111947, 193363, 223894, 386726, 559735, 966815, 1119470, 1933630, 2126993, 4253986, 10634965, 21269930]

約数ペア:

[(1, 21269930), (2, 10634965), (5, 4253986), (10, 2126993), (11, 1933630), (19, 1119470), (22, 966815), (38, 559735), (55, 386726), (95, 223894), (110, 193363), (190, 111947), (209, 101770), (418, 50885), (1045, 20354), (2090, 10177)]