21697552

素因数分解:

$2^4\times {\mathrm{211}}^1\times {\mathrm{6427}}^1$

素因数の和:6646

約数の個数: 20

約数和(自身を含む): 42244816

約数和(自身を除く): 20547264

約数列:

[1, 2, 4, 8, 16, 211, 422, 844, 1688, 3376, 6427, 12854, 25708, 51416, 102832, 1356097, 2712194, 5424388, 10848776, 21697552]

約数ペア:

[(1, 21697552), (2, 10848776), (4, 5424388), (8, 2712194), (16, 1356097), (211, 102832), (422, 51416), (844, 25708), (1688, 12854), (3376, 6427)]