222245919

素因数分解:

$3^2\times 7^2\times {\mathrm{503959}}^1$

素因数の和:503979

約数の個数: 18

約数和(自身を含む): 373434360

約数和(自身を除く): 151188441

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 503959, 1511877, 3527713, 4535631, 10583139, 24693991, 31749417, 74081973, 222245919]

約数ペア:

[(1, 222245919), (3, 74081973), (7, 31749417), (9, 24693991), (21, 10583139), (49, 4535631), (63, 3527713), (147, 1511877), (441, 503959)]