20905664

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{25127}}^1$

素因数の和:25152

約数の個数: 28

約数和(自身を含む): 44677584

約数和(自身を除く): 23771920

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 208, 416, 832, 25127, 50254, 100508, 201016, 326651, 402032, 653302, 804064, 1306604, 1608128, 2613208, 5226416, 10452832, 20905664]

約数ペア:

[(1, 20905664), (2, 10452832), (4, 5226416), (8, 2613208), (13, 1608128), (16, 1306604), (26, 804064), (32, 653302), (52, 402032), (64, 326651), (104, 201016), (208, 100508), (416, 50254), (832, 25127)]