19947226

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{271}}^1$

素因数の和:454

約数の個数: 32

約数和(自身を含む): 34272000

約数和(自身を除く): 14324774

約数列:

[1, 2, 13, 19, 26, 38, 149, 247, 271, 298, 494, 542, 1937, 2831, 3523, 3874, 5149, 5662, 7046, 10298, 36803, 40379, 66937, 73606, 80758, 133874, 524927, 767201, 1049854, 1534402, 9973613, 19947226]

約数ペア:

[(1, 19947226), (2, 9973613), (13, 1534402), (19, 1049854), (26, 767201), (38, 524927), (149, 133874), (247, 80758), (271, 73606), (298, 66937), (494, 40379), (542, 36803), (1937, 10298), (2831, 7046), (3523, 5662), (3874, 5149)]