20666254

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{1223}}^1$

素因数の和:1320

約数の個数: 32

約数和(自身を含む): 38071296

約数和(自身を除く): 17405042

約数列:

[1, 2, 7, 14, 17, 34, 71, 119, 142, 238, 497, 994, 1207, 1223, 2414, 2446, 8449, 8561, 16898, 17122, 20791, 41582, 86833, 145537, 173666, 291074, 607831, 1215662, 1476161, 2952322, 10333127, 20666254]

約数ペア:

[(1, 20666254), (2, 10333127), (7, 2952322), (14, 1476161), (17, 1215662), (34, 607831), (71, 291074), (119, 173666), (142, 145537), (238, 86833), (497, 41582), (994, 20791), (1207, 17122), (1223, 16898), (2414, 8561), (2446, 8449)]