20431605

素因数分解:

$3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{397}}^1$

素因数の和:525

約数の個数: 32

約数和(自身を含む): 33928704

約数和(自身を除く): 13497099

約数列:

[1, 3, 5, 15, 47, 73, 141, 219, 235, 365, 397, 705, 1095, 1191, 1985, 3431, 5955, 10293, 17155, 18659, 28981, 51465, 55977, 86943, 93295, 144905, 279885, 434715, 1362107, 4086321, 6810535, 20431605]

約数ペア:

[(1, 20431605), (3, 6810535), (5, 4086321), (15, 1362107), (47, 434715), (73, 279885), (141, 144905), (219, 93295), (235, 86943), (365, 55977), (397, 51465), (705, 28981), (1095, 18659), (1191, 17155), (1985, 10293), (3431, 5955)]