21753968

素因数分解:

$2^4\times {\mathrm{83}}^1\times {\mathrm{16381}}^1$

素因数の和:16472

約数の個数: 20

約数和(自身を含む): 42658728

約数和(自身を除く): 20904760

約数列:

[1, 2, 4, 8, 16, 83, 166, 332, 664, 1328, 16381, 32762, 65524, 131048, 262096, 1359623, 2719246, 5438492, 10876984, 21753968]

約数ペア:

[(1, 21753968), (2, 10876984), (4, 5438492), (8, 2719246), (16, 1359623), (83, 262096), (166, 131048), (332, 65524), (664, 32762), (1328, 16381)]