20018776

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{67631}}^1$

素因数の和:67674

約数の個数: 16

約数和(自身を含む): 38550240

約数和(自身を除く): 18531464

約数列:

[1, 2, 4, 8, 37, 74, 148, 296, 67631, 135262, 270524, 541048, 2502347, 5004694, 10009388, 20018776]

約数ペア:

[(1, 20018776), (2, 10009388), (4, 5004694), (8, 2502347), (37, 541048), (74, 270524), (148, 135262), (296, 67631)]