19165978

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{173}}^1\times {\mathrm{4261}}^1$

素因数の和:4449

約数の個数: 16

約数和(自身を含む): 31146696

約数和(自身を除く): 11980718

約数列:

[1, 2, 13, 26, 173, 346, 2249, 4261, 4498, 8522, 55393, 110786, 737153, 1474306, 9582989, 19165978]

約数ペア:

[(1, 19165978), (2, 9582989), (13, 1474306), (26, 737153), (173, 110786), (346, 55393), (2249, 8522), (4261, 4498)]