19688528

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{30013}}^1$

素因数の和:30062

約数の個数: 20

約数和(自身を含む): 39078228

約数和(自身を除く): 19389700

約数列:

[1, 2, 4, 8, 16, 41, 82, 164, 328, 656, 30013, 60026, 120052, 240104, 480208, 1230533, 2461066, 4922132, 9844264, 19688528]

約数ペア:

[(1, 19688528), (2, 9844264), (4, 4922132), (8, 2461066), (16, 1230533), (41, 480208), (82, 240104), (164, 120052), (328, 60026), (656, 30013)]