21046955

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{397}}^1\times {\mathrm{461}}^1$

素因数の和:886

約数の個数: 16

約数和(自身を含む): 26478144

約数和(自身を除く): 5431189

約数列:

[1, 5, 23, 115, 397, 461, 1985, 2305, 9131, 10603, 45655, 53015, 183017, 915085, 4209391, 21046955]

約数ペア:

[(1, 21046955), (5, 4209391), (23, 915085), (115, 183017), (397, 53015), (461, 45655), (1985, 10603), (2305, 9131)]