20912605

素因数分解:

$5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{5801}}^1$

素因数の和:5916

約数の個数: 16

約数和(自身を含む): 28963584

約数和(自身を除く): 8050979

約数列:

[1, 5, 7, 35, 103, 515, 721, 3605, 5801, 29005, 40607, 203035, 597503, 2987515, 4182521, 20912605]

約数ペア:

[(1, 20912605), (5, 4182521), (7, 2987515), (35, 597503), (103, 203035), (515, 40607), (721, 29005), (3605, 5801)]