21818524

素因数分解:

$2^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{8563}}^1$

素因数の和:8594

約数の個数: 36

約数和(自身を含む): 47838504

約数和(自身を除く): 26019980

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 49, 52, 91, 98, 182, 196, 364, 637, 1274, 2548, 8563, 17126, 34252, 59941, 111319, 119882, 222638, 239764, 419587, 445276, 779233, 839174, 1558466, 1678348, 3116932, 5454631, 10909262, 21818524]

約数ペア:

[(1, 21818524), (2, 10909262), (4, 5454631), (7, 3116932), (13, 1678348), (14, 1558466), (26, 839174), (28, 779233), (49, 445276), (52, 419587), (91, 239764), (98, 222638), (182, 119882), (196, 111319), (364, 59941), (637, 34252), (1274, 17126), (2548, 8563)]