19811883

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{2341}}^1$

素因数の和:2395

約数の個数: 32

約数和(自身を含む): 33574912

約数和(自身を除く): 13763029

約数列:

[1, 3, 7, 13, 21, 31, 39, 91, 93, 217, 273, 403, 651, 1209, 2341, 2821, 7023, 8463, 16387, 30433, 49161, 72571, 91299, 213031, 217713, 507997, 639093, 943423, 1523991, 2830269, 6603961, 19811883]

約数ペア:

[(1, 19811883), (3, 6603961), (7, 2830269), (13, 1523991), (21, 943423), (31, 639093), (39, 507997), (91, 217713), (93, 213031), (217, 91299), (273, 72571), (403, 49161), (651, 30433), (1209, 16387), (2341, 8463), (2821, 7023)]