21730515

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{62987}}^1$

素因数の和:63018

約数の個数: 16

約数和(自身を含む): 36281088

約数和(自身を除く): 14550573

約数列:

[1, 3, 5, 15, 23, 69, 115, 345, 62987, 188961, 314935, 944805, 1448701, 4346103, 7243505, 21730515]

約数ペア:

[(1, 21730515), (3, 7243505), (5, 4346103), (15, 1448701), (23, 944805), (69, 314935), (115, 188961), (345, 62987)]