21093556

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{271}}^1$

素因数の和:376

約数の個数: 48

約数和(自身を含む): 42497280

約数和(自身を除く): 21403724

約数列:

[1, 2, 4, 11, 22, 29, 44, 58, 61, 116, 122, 244, 271, 319, 542, 638, 671, 1084, 1276, 1342, 1769, 2684, 2981, 3538, 5962, 7076, 7859, 11924, 15718, 16531, 19459, 31436, 33062, 38918, 66124, 77836, 86449, 172898, 181841, 345796, 363682, 479399, 727364, 958798, 1917596, 5273389, 10546778, 21093556]

約数ペア:

[(1, 21093556), (2, 10546778), (4, 5273389), (11, 1917596), (22, 958798), (29, 727364), (44, 479399), (58, 363682), (61, 345796), (116, 181841), (122, 172898), (244, 86449), (271, 77836), (319, 66124), (542, 38918), (638, 33062), (671, 31436), (1084, 19459), (1276, 16531), (1342, 15718), (1769, 11924), (2684, 7859), (2981, 7076), (3538, 5962)]