19982716

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{571}}^1\times {\mathrm{673}}^1$

素因数の和:1261

約数の個数: 24

約数和(自身を含む): 37781744

約数和(自身を除く): 17799028

約数列:

[1, 2, 4, 13, 26, 52, 571, 673, 1142, 1346, 2284, 2692, 7423, 8749, 14846, 17498, 29692, 34996, 384283, 768566, 1537132, 4995679, 9991358, 19982716]

約数ペア:

[(1, 19982716), (2, 9991358), (4, 4995679), (13, 1537132), (26, 768566), (52, 384283), (571, 34996), (673, 29692), (1142, 17498), (1346, 14846), (2284, 8749), (2692, 7423)]