219981894

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{77513}}^1$

素因数の和:77572

約数の個数: 32

約数和(自身を含む): 491128704

約数和(自身を除く): 271146810

約数列:

[1, 2, 3, 6, 11, 22, 33, 43, 66, 86, 129, 258, 473, 946, 1419, 2838, 77513, 155026, 232539, 465078, 852643, 1705286, 2557929, 3333059, 5115858, 6666118, 9999177, 19998354, 36663649, 73327298, 109990947, 219981894]

約数ペア:

[(1, 219981894), (2, 109990947), (3, 73327298), (6, 36663649), (11, 19998354), (22, 9999177), (33, 6666118), (43, 5115858), (66, 3333059), (86, 2557929), (129, 1705286), (258, 852643), (473, 465078), (946, 232539), (1419, 155026), (2838, 77513)]