20901258

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{165883}}^1$

素因数の和:165898

約数の個数: 24

約数和(自身を含む): 51755808

約数和(自身を除く): 30854550

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 165883, 331766, 497649, 995298, 1161181, 1492947, 2322362, 2985894, 3483543, 6967086, 10450629, 20901258]

約数ペア:

[(1, 20901258), (2, 10450629), (3, 6967086), (6, 3483543), (7, 2985894), (9, 2322362), (14, 1492947), (18, 1161181), (21, 995298), (42, 497649), (63, 331766), (126, 165883)]