20174985

素因数分解:

$3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{9539}}^1$

素因数の和:9597

約数の個数: 24

約数和(自身を含む): 35717760

約数和(自身を除く): 15542775

約数列:

[1, 3, 5, 9, 15, 45, 47, 141, 235, 423, 705, 2115, 9539, 28617, 47695, 85851, 143085, 429255, 448333, 1344999, 2241665, 4034997, 6724995, 20174985]

約数ペア:

[(1, 20174985), (3, 6724995), (5, 4034997), (9, 2241665), (15, 1344999), (45, 448333), (47, 429255), (141, 143085), (235, 85851), (423, 47695), (705, 28617), (2115, 9539)]