19791783

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{229}}^1$

素因数の和:349

約数の個数: 40

約数和(自身を含む): 32728080

約数和(自身を除く): 12936297

約数列:

[1, 3, 9, 11, 27, 33, 81, 97, 99, 229, 291, 297, 687, 873, 891, 1067, 2061, 2519, 2619, 3201, 6183, 7557, 7857, 9603, 18549, 22213, 22671, 28809, 66639, 68013, 86427, 199917, 204039, 244343, 599751, 733029, 1799253, 2199087, 6597261, 19791783]

約数ペア:

[(1, 19791783), (3, 6597261), (9, 2199087), (11, 1799253), (27, 733029), (33, 599751), (81, 244343), (97, 204039), (99, 199917), (229, 86427), (291, 68013), (297, 66639), (687, 28809), (873, 22671), (891, 22213), (1067, 18549), (2061, 9603), (2519, 7857), (2619, 7557), (3201, 6183)]