18638696

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{2609}}^1$

素因数の和:2681

約数の個数: 32

約数和(自身を含む): 37584000

約数和(自身を除く): 18945304

約数列:

[1, 2, 4, 8, 19, 38, 47, 76, 94, 152, 188, 376, 893, 1786, 2609, 3572, 5218, 7144, 10436, 20872, 49571, 99142, 122623, 198284, 245246, 396568, 490492, 980984, 2329837, 4659674, 9319348, 18638696]

約数ペア:

[(1, 18638696), (2, 9319348), (4, 4659674), (8, 2329837), (19, 980984), (38, 490492), (47, 396568), (76, 245246), (94, 198284), (152, 122623), (188, 99142), (376, 49571), (893, 20872), (1786, 10436), (2609, 7144), (3572, 5218)]