19725136

素因数分解:

$2^4\times {\mathrm{1013}}^1\times {\mathrm{1217}}^1$

素因数の和:2238

約数の個数: 20

約数和(自身を含む): 38286612

約数和(自身を除く): 18561476

約数列:

[1, 2, 4, 8, 16, 1013, 1217, 2026, 2434, 4052, 4868, 8104, 9736, 16208, 19472, 1232821, 2465642, 4931284, 9862568, 19725136]

約数ペア:

[(1, 19725136), (2, 9862568), (4, 4931284), (8, 2465642), (16, 1232821), (1013, 19472), (1217, 16208), (2026, 9736), (2434, 8104), (4052, 4868)]