21705838

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{8291}}^1$

素因数の和:8328

約数の個数: 32

約数和(自身を含む): 42985728

約数和(自身を除く): 21279890

約数列:

[1, 2, 7, 11, 14, 17, 22, 34, 77, 119, 154, 187, 238, 374, 1309, 2618, 8291, 16582, 58037, 91201, 116074, 140947, 182402, 281894, 638407, 986629, 1276814, 1550417, 1973258, 3100834, 10852919, 21705838]

約数ペア:

[(1, 21705838), (2, 10852919), (7, 3100834), (11, 1973258), (14, 1550417), (17, 1276814), (22, 986629), (34, 638407), (77, 281894), (119, 182402), (154, 140947), (187, 116074), (238, 91201), (374, 58037), (1309, 16582), (2618, 8291)]