642942

素因数分解:

$2^1\times 3^2\times {\mathrm{23}}^1\times {\mathrm{1553}}^1$

素因数の和:1584

約数の個数: 24

約数和(自身を含む): 1454544

約数和(自身を除く): 811602

約数列:

[1, 2, 3, 6, 9, 18, 23, 46, 69, 138, 207, 414, 1553, 3106, 4659, 9318, 13977, 27954, 35719, 71438, 107157, 214314, 321471, 642942]

約数ペア:

[(1, 642942), (2, 321471), (3, 214314), (6, 107157), (9, 71438), (18, 35719), (23, 27954), (46, 13977), (69, 9318), (138, 4659), (207, 3106), (414, 1553)]