21851778

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{433}}^1\times {\mathrm{647}}^1$

素因数の和:1098

約数の個数: 32

約数和(自身を含む): 47246976

約数和(自身を除く): 25395198

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 433, 647, 866, 1294, 1299, 1941, 2598, 3882, 5629, 8411, 11258, 16822, 16887, 25233, 33774, 50466, 280151, 560302, 840453, 1680906, 3641963, 7283926, 10925889, 21851778]

約数ペア:

[(1, 21851778), (2, 10925889), (3, 7283926), (6, 3641963), (13, 1680906), (26, 840453), (39, 560302), (78, 280151), (433, 50466), (647, 33774), (866, 25233), (1294, 16887), (1299, 16822), (1941, 11258), (2598, 8411), (3882, 5629)]