18688229

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{227}}^1\times {\mathrm{619}}^1$

素因数の和:872

約数の個数: 16

約数和(自身を含む): 22617600

約数和(自身を除く): 3929371

約数列:

[1, 7, 19, 133, 227, 619, 1589, 4313, 4333, 11761, 30191, 82327, 140513, 983591, 2669747, 18688229]

約数ペア:

[(1, 18688229), (7, 2669747), (19, 983591), (133, 140513), (227, 82327), (619, 30191), (1589, 11761), (4313, 4333)]