28990431

素因数分解:

$3^2\times {\mathrm{67}}^1\times {\mathrm{131}}^1\times {\mathrm{367}}^1$

素因数の和:571

約数の個数: 24

約数和(自身を含む): 42941184

約数和(自身を除く): 13950753

約数列:

[1, 3, 9, 67, 131, 201, 367, 393, 603, 1101, 1179, 3303, 8777, 24589, 26331, 48077, 73767, 78993, 144231, 221301, 432693, 3221159, 9663477, 28990431]

約数ペア:

[(1, 28990431), (3, 9663477), (9, 3221159), (67, 432693), (131, 221301), (201, 144231), (367, 78993), (393, 73767), (603, 48077), (1101, 26331), (1179, 24589), (3303, 8777)]