21201929

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{239}}^1$

素因数の和:317

約数の個数: 32

約数和(自身を含む): 27648000

約数和(自身を除く): 6446071

約数列:

[1, 7, 19, 23, 29, 133, 161, 203, 239, 437, 551, 667, 1673, 3059, 3857, 4541, 4669, 5497, 6931, 12673, 31787, 38479, 48517, 88711, 104443, 131689, 159413, 731101, 921823, 1115891, 3028847, 21201929]

約数ペア:

[(1, 21201929), (7, 3028847), (19, 1115891), (23, 921823), (29, 731101), (133, 159413), (161, 131689), (203, 104443), (239, 88711), (437, 48517), (551, 38479), (667, 31787), (1673, 12673), (3059, 6931), (3857, 5497), (4541, 4669)]