20021489285

素因数分解:

$5^1\times 7^1\times {\mathrm{37831}}^1\times {\mathrm{15121}}^1$

素因数の和:52964

約数の個数: 16

約数和(自身を含む): 27460584192

約数和(自身を除く): 7439094907

約数列:

[1, 5, 7, 35, 15121, 37831, 75605, 105847, 189155, 264817, 529235, 1324085, 572042551, 2860212755, 4004297857, 20021489285]

約数ペア:

[(1, 20021489285), (5, 4004297857), (7, 2860212755), (35, 572042551), (15121, 1324085), (37831, 529235), (75605, 264817), (105847, 189155)]