20339977

素因数分解:

$7^1\times {\mathrm{41}}^1\times {\mathrm{131}}^1\times {\mathrm{541}}^1$

素因数の和:720

約数の個数: 16

約数和(自身を含む): 24038784

約数和(自身を除く): 3698807

約数列:

[1, 7, 41, 131, 287, 541, 917, 3787, 5371, 22181, 37597, 70871, 155267, 496097, 2905711, 20339977]

約数ペア:

[(1, 20339977), (7, 2905711), (41, 496097), (131, 155267), (287, 70871), (541, 37597), (917, 22181), (3787, 5371)]