21657776

素因数分解:

$2^4\times 7^1\times {\mathrm{193373}}^1$

素因数の和:193388

約数の個数: 20

約数和(自身を含む): 47956752

約数和(自身を除く): 26298976

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 193373, 386746, 773492, 1353611, 1546984, 2707222, 3093968, 5414444, 10828888, 21657776]

約数ペア:

[(1, 21657776), (2, 10828888), (4, 5414444), (7, 3093968), (8, 2707222), (14, 1546984), (16, 1353611), (28, 773492), (56, 386746), (112, 193373)]