21640656

素因数分解:

$2^4\times 3^1\times {\mathrm{450847}}^1$

素因数の和:450858

約数の個数: 20

約数和(自身を含む): 55905152

約数和(自身を除く): 34264496

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 450847, 901694, 1352541, 1803388, 2705082, 3606776, 5410164, 7213552, 10820328, 21640656]

約数ペア:

[(1, 21640656), (2, 10820328), (3, 7213552), (4, 5410164), (6, 3606776), (8, 2705082), (12, 1803388), (16, 1352541), (24, 901694), (48, 450847)]