21376545

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{61961}}^1$

素因数の和:61992

約数の個数: 16

約数和(自身を含む): 35690112

約数和(自身を除く): 14313567

約数列:

[1, 3, 5, 15, 23, 69, 115, 345, 61961, 185883, 309805, 929415, 1425103, 4275309, 7125515, 21376545]

約数ペア:

[(1, 21376545), (3, 7125515), (5, 4275309), (15, 1425103), (23, 929415), (69, 309805), (115, 185883), (345, 61961)]