20668984

素因数分解:

$2^3\times 7^2\times {\mathrm{52727}}^1$

素因数の和:52747

約数の個数: 24

約数和(自身を含む): 45082440

約数和(自身を除く): 24413456

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 392, 52727, 105454, 210908, 369089, 421816, 738178, 1476356, 2583623, 2952712, 5167246, 10334492, 20668984]

約数ペア:

[(1, 20668984), (2, 10334492), (4, 5167246), (7, 2952712), (8, 2583623), (14, 1476356), (28, 738178), (49, 421816), (56, 369089), (98, 210908), (196, 105454), (392, 52727)]