21113356

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{673}}^1$

素因数の和:742

約数の個数: 48

約数和(自身を含む): 43481088

約数和(自身を除く): 22367732

約数列:

[1, 2, 4, 11, 22, 23, 31, 44, 46, 62, 92, 124, 253, 341, 506, 673, 682, 713, 1012, 1346, 1364, 1426, 2692, 2852, 7403, 7843, 14806, 15479, 15686, 20863, 29612, 30958, 31372, 41726, 61916, 83452, 170269, 229493, 340538, 458986, 479849, 681076, 917972, 959698, 1919396, 5278339, 10556678, 21113356]

約数ペア:

[(1, 21113356), (2, 10556678), (4, 5278339), (11, 1919396), (22, 959698), (23, 917972), (31, 681076), (44, 479849), (46, 458986), (62, 340538), (92, 229493), (124, 170269), (253, 83452), (341, 61916), (506, 41726), (673, 31372), (682, 30958), (713, 29612), (1012, 20863), (1346, 15686), (1364, 15479), (1426, 14806), (2692, 7843), (2852, 7403)]