189902007

素因数分解:

$3^2\times {\mathrm{23}}^2\times {\mathrm{39887}}^1$

素因数の和:39939

約数の個数: 18

約数和(自身を含む): 286754832

約数和(自身を除く): 96852825

約数列:

[1, 3, 9, 23, 69, 207, 529, 1587, 4761, 39887, 119661, 358983, 917401, 2752203, 8256609, 21100223, 63300669, 189902007]

約数ペア:

[(1, 189902007), (3, 63300669), (9, 21100223), (23, 8256609), (69, 2752203), (207, 917401), (529, 358983), (1587, 119661), (4761, 39887)]