18873171

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{167}}^1\times {\mathrm{433}}^1$

素因数の和:635

約数の個数: 24

約数和(自身を含む): 28435680

約数和(自身を除く): 9562509

約数列:

[1, 3, 9, 29, 87, 167, 261, 433, 501, 1299, 1503, 3897, 4843, 12557, 14529, 37671, 43587, 72311, 113013, 216933, 650799, 2097019, 6291057, 18873171]

約数ペア:

[(1, 18873171), (3, 6291057), (9, 2097019), (29, 650799), (87, 216933), (167, 113013), (261, 72311), (433, 43587), (501, 37671), (1299, 14529), (1503, 12557), (3897, 4843)]