21208028

素因数分解:

$2^2\times {\mathrm{19}}^3\times {\mathrm{773}}^1$

素因数の和:834

約数の個数: 24

約数和(自身を含む): 39226320

約数和(自身を除く): 18018292

約数列:

[1, 2, 4, 19, 38, 76, 361, 722, 773, 1444, 1546, 3092, 6859, 13718, 14687, 27436, 29374, 58748, 279053, 558106, 1116212, 5302007, 10604014, 21208028]

約数ペア:

[(1, 21208028), (2, 10604014), (4, 5302007), (19, 1116212), (38, 558106), (76, 279053), (361, 58748), (722, 29374), (773, 27436), (1444, 14687), (1546, 13718), (3092, 6859)]