20896623

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{499}}^1$

素因数の和:569

約数の個数: 40

約数和(自身を含む): 34848000

約数和(自身を除く): 13951377

約数列:

[1, 3, 9, 11, 27, 33, 47, 81, 99, 141, 297, 423, 499, 517, 891, 1269, 1497, 1551, 3807, 4491, 4653, 5489, 13473, 13959, 16467, 23453, 40419, 41877, 49401, 70359, 148203, 211077, 257983, 444609, 633231, 773949, 1899693, 2321847, 6965541, 20896623]

約数ペア:

[(1, 20896623), (3, 6965541), (9, 2321847), (11, 1899693), (27, 773949), (33, 633231), (47, 444609), (81, 257983), (99, 211077), (141, 148203), (297, 70359), (423, 49401), (499, 41877), (517, 40419), (891, 23453), (1269, 16467), (1497, 13959), (1551, 13473), (3807, 5489), (4491, 4653)]