19994023

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{239}}^1$

素因数の和:319

約数の個数: 32

約数和(自身を含む): 26265600

約数和(自身を除く): 6271577

約数列:

[1, 7, 17, 19, 37, 119, 133, 239, 259, 323, 629, 703, 1673, 2261, 4063, 4403, 4541, 4921, 8843, 11951, 28441, 31787, 61901, 77197, 83657, 150331, 168017, 540379, 1052317, 1176119, 2856289, 19994023]

約数ペア:

[(1, 19994023), (7, 2856289), (17, 1176119), (19, 1052317), (37, 540379), (119, 168017), (133, 150331), (239, 83657), (259, 77197), (323, 61901), (629, 31787), (703, 28441), (1673, 11951), (2261, 8843), (4063, 4921), (4403, 4541)]