21887696

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{71999}}^1$

素因数の和:72026

約数の個数: 20

約数和(自身を含む): 44640000

約数和(自身を除く): 22752304

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 71999, 143998, 287996, 575992, 1151984, 1367981, 2735962, 5471924, 10943848, 21887696]

約数ペア:

[(1, 21887696), (2, 10943848), (4, 5471924), (8, 2735962), (16, 1367981), (19, 1151984), (38, 575992), (76, 287996), (152, 143998), (304, 71999)]