21000992128

素因数分解:

$2^7\times {\mathrm{164070251}}^1$

素因数の和:164070265

約数の個数: 16

約数和(自身を含む): 41837914260

約数和(自身を除く): 20836922132

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 164070251, 328140502, 656281004, 1312562008, 2625124016, 5250248032, 10500496064, 21000992128]

約数ペア:

[(1, 21000992128), (2, 10500496064), (4, 5250248032), (8, 2625124016), (16, 1312562008), (32, 656281004), (64, 328140502), (128, 164070251)]