21813935

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{30509}}^1$

素因数の和:30538

約数の個数: 16

約数和(自身を含む): 30754080

約数和(自身を除く): 8940145

約数列:

[1, 5, 11, 13, 55, 65, 143, 715, 30509, 152545, 335599, 396617, 1677995, 1983085, 4362787, 21813935]

約数ペア:

[(1, 21813935), (5, 4362787), (11, 1983085), (13, 1677995), (55, 396617), (65, 335599), (143, 152545), (715, 30509)]