19912072

素因数分解:

$2^3\times {\mathrm{647}}^1\times {\mathrm{3847}}^1$

素因数の和:4500

約数の個数: 16

約数和(自身を含む): 37402560

約数和(自身を除く): 17490488

約数列:

[1, 2, 4, 8, 647, 1294, 2588, 3847, 5176, 7694, 15388, 30776, 2489009, 4978018, 9956036, 19912072]

約数ペア:

[(1, 19912072), (2, 9956036), (4, 4978018), (8, 2489009), (647, 30776), (1294, 15388), (2588, 7694), (3847, 5176)]