42779989

素因数分解:

$7^3\times {\mathrm{191}}^1\times {\mathrm{653}}^1$

素因数の和:865

約数の個数: 16

約数和(自身を含む): 50227200

約数和(自身を除く): 7447211

約数列:

[1, 7, 49, 191, 343, 653, 1337, 4571, 9359, 31997, 65513, 124723, 223979, 873061, 6111427, 42779989]

約数ペア:

[(1, 42779989), (7, 6111427), (49, 873061), (191, 223979), (343, 124723), (653, 65513), (1337, 31997), (4571, 9359)]