21886768

素因数分解:

$2^4\times {\mathrm{83}}^1\times {\mathrm{16481}}^1$

素因数の和:16572

約数の個数: 20

約数和(自身を含む): 42919128

約数和(自身を除く): 21032360

約数列:

[1, 2, 4, 8, 16, 83, 166, 332, 664, 1328, 16481, 32962, 65924, 131848, 263696, 1367923, 2735846, 5471692, 10943384, 21886768]

約数ペア:

[(1, 21886768), (2, 10943384), (4, 5471692), (8, 2735846), (16, 1367923), (83, 263696), (166, 131848), (332, 65924), (664, 32962), (1328, 16481)]