69947721

素因数分解:

$3^2\times {\mathrm{19}}^2\times {\mathrm{21529}}^1$

素因数の和:21573

約数の個数: 18

約数和(自身を含む): 106638090

約数和(自身を除く): 36690369

約数列:

[1, 3, 9, 19, 57, 171, 361, 1083, 3249, 21529, 64587, 193761, 409051, 1227153, 3681459, 7771969, 23315907, 69947721]

約数ペア:

[(1, 69947721), (3, 23315907), (9, 7771969), (19, 3681459), (57, 1227153), (171, 409051), (361, 193761), (1083, 64587), (3249, 21529)]