21917968

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{47237}}^1$

素因数の和:47274

約数の個数: 20

約数和(自身を含む): 43931340

約数和(自身を除く): 22013372

約数列:

[1, 2, 4, 8, 16, 29, 58, 116, 232, 464, 47237, 94474, 188948, 377896, 755792, 1369873, 2739746, 5479492, 10958984, 21917968]

約数ペア:

[(1, 21917968), (2, 10958984), (4, 5479492), (8, 2739746), (16, 1369873), (29, 755792), (58, 377896), (116, 188948), (232, 94474), (464, 47237)]