18945451

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{181}}^1\times {\mathrm{787}}^1$

素因数の和:994

約数の個数: 16

約数和(自身を含む): 22946560

約数和(自身を除く): 4001109

約数列:

[1, 7, 19, 133, 181, 787, 1267, 3439, 5509, 14953, 24073, 104671, 142447, 997129, 2706493, 18945451]

約数ペア:

[(1, 18945451), (7, 2706493), (19, 997129), (133, 142447), (181, 104671), (787, 24073), (1267, 14953), (3439, 5509)]