19928511

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{563}}^1$

素因数の和:617

約数の個数: 40

約数和(自身を含む): 32757120

約数和(自身を除く): 12828609

約数列:

[1, 3, 9, 19, 23, 27, 57, 69, 81, 171, 207, 437, 513, 563, 621, 1311, 1539, 1689, 1863, 3933, 5067, 10697, 11799, 12949, 15201, 32091, 35397, 38847, 45603, 96273, 116541, 246031, 288819, 349623, 738093, 866457, 1048869, 2214279, 6642837, 19928511]

約数ペア:

[(1, 19928511), (3, 6642837), (9, 2214279), (19, 1048869), (23, 866457), (27, 738093), (57, 349623), (69, 288819), (81, 246031), (171, 116541), (207, 96273), (437, 45603), (513, 38847), (563, 35397), (621, 32091), (1311, 15201), (1539, 12949), (1689, 11799), (1863, 10697), (3933, 5067)]