21376232

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{257}}^1\times {\mathrm{281}}^1$

素因数の和:581

約数の個数: 32

約数和(自身を含む): 41470920

約数和(自身を除く): 20094688

約数列:

[1, 2, 4, 8, 37, 74, 148, 257, 281, 296, 514, 562, 1028, 1124, 2056, 2248, 9509, 10397, 19018, 20794, 38036, 41588, 72217, 76072, 83176, 144434, 288868, 577736, 2672029, 5344058, 10688116, 21376232]

約数ペア:

[(1, 21376232), (2, 10688116), (4, 5344058), (8, 2672029), (37, 577736), (74, 288868), (148, 144434), (257, 83176), (281, 76072), (296, 72217), (514, 41588), (562, 38036), (1028, 20794), (1124, 19018), (2056, 10397), (2248, 9509)]