21316024

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{140237}}^1$

素因数の和:140262

約数の個数: 16

約数和(自身を含む): 42071400

約数和(自身を除く): 20755376

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 140237, 280474, 560948, 1121896, 2664503, 5329006, 10658012, 21316024]

約数ペア:

[(1, 21316024), (2, 10658012), (4, 5329006), (8, 2664503), (19, 1121896), (38, 560948), (76, 280474), (152, 140237)]