19661904

素因数分解:

$2^4\times 3^2\times {\mathrm{136541}}^1$

素因数の和:136555

約数の個数: 30

約数和(自身を含む): 55026426

約数和(自身を除く): 35364522

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 36, 48, 72, 144, 136541, 273082, 409623, 546164, 819246, 1092328, 1228869, 1638492, 2184656, 2457738, 3276984, 4915476, 6553968, 9830952, 19661904]

約数ペア:

[(1, 19661904), (2, 9830952), (3, 6553968), (4, 4915476), (6, 3276984), (8, 2457738), (9, 2184656), (12, 1638492), (16, 1228869), (18, 1092328), (24, 819246), (36, 546164), (48, 409623), (72, 273082), (144, 136541)]