19778114

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{4831}}^1$

素因数の和:4945

約数の個数: 16

約数和(自身を含む): 31311360

約数和(自身を除く): 11533246

約数列:

[1, 2, 23, 46, 89, 178, 2047, 4094, 4831, 9662, 111113, 222226, 429959, 859918, 9889057, 19778114]

約数ペア:

[(1, 19778114), (2, 9889057), (23, 859918), (46, 429959), (89, 222226), (178, 111113), (2047, 9662), (4094, 4831)]