21160388

素因数分解:

$2^2\times {\mathrm{109}}^1\times {\mathrm{48533}}^1$

素因数の和:48646

約数の個数: 12

約数和(自身を含む): 37371180

約数和(自身を除く): 16210792

約数列:

[1, 2, 4, 109, 218, 436, 48533, 97066, 194132, 5290097, 10580194, 21160388]

約数ペア:

[(1, 21160388), (2, 10580194), (4, 5290097), (109, 194132), (218, 97066), (436, 48533)]