20807280975

素因数分解:

$3^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{21340801}}^1$

素因数の和:21340827

約数の個数: 24

約数和(自身を含む): 37047632272

約数和(自身を除く): 16240351297

約数列:

[1, 3, 5, 13, 15, 25, 39, 65, 75, 195, 325, 975, 21340801, 64022403, 106704005, 277430413, 320112015, 533520025, 832291239, 1387152065, 1600560075, 4161456195, 6935760325, 20807280975]

約数ペア:

[(1, 20807280975), (3, 6935760325), (5, 4161456195), (13, 1600560075), (15, 1387152065), (25, 832291239), (39, 533520025), (65, 320112015), (75, 277430413), (195, 106704005), (325, 64022403), (975, 21340801)]