21889999

素因数分解:

${\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{569}}^1$

素因数の和:690

約数の個数: 16

約数和(自身を含む): 24295680

約数和(自身を除く): 2405681

約数列:

[1, 17, 31, 73, 527, 569, 1241, 2263, 9673, 17639, 38471, 41537, 299863, 706129, 1287647, 21889999]

約数ペア:

[(1, 21889999), (17, 1287647), (31, 706129), (73, 299863), (527, 41537), (569, 38471), (1241, 17639), (2263, 9673)]