251223587

素因数分解:

${\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{163}}^1\times {\mathrm{491}}^1$

素因数の和:770

約数の個数: 16

約数和(自身を含む): 262720128

約数和(自身を除く): 11496541

約数列:

[1, 43, 73, 163, 491, 3139, 7009, 11899, 21113, 35843, 80033, 511657, 1541249, 3441419, 5842409, 251223587]

約数ペア:

[(1, 251223587), (43, 5842409), (73, 3441419), (163, 1541249), (491, 511657), (3139, 80033), (7009, 35843), (11899, 21113)]