21251614

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{163}}^1$

素因数の和:304

約数の個数: 32

約数和(自身を含む): 34951680

約数和(自身を除く): 13700066

約数列:

[1, 2, 19, 38, 47, 73, 94, 146, 163, 326, 893, 1387, 1786, 2774, 3097, 3431, 6194, 6862, 7661, 11899, 15322, 23798, 65189, 130378, 145559, 226081, 291118, 452162, 559253, 1118506, 10625807, 21251614]

約数ペア:

[(1, 21251614), (2, 10625807), (19, 1118506), (38, 559253), (47, 452162), (73, 291118), (94, 226081), (146, 145559), (163, 130378), (326, 65189), (893, 23798), (1387, 15322), (1786, 11899), (2774, 7661), (3097, 6862), (3431, 6194)]