399888921

素因数分解:

$3^1\times {\mathrm{151}}^1\times {\mathrm{197}}^1\times {\mathrm{4481}}^1$

素因数の和:4832

約数の個数: 16

約数和(自身を含む): 539561088

約数和(自身を除く): 139672167

約数列:

[1, 3, 151, 197, 453, 591, 4481, 13443, 29747, 89241, 676631, 882757, 2029893, 2648271, 133296307, 399888921]

約数ペア:

[(1, 399888921), (3, 133296307), (151, 2648271), (197, 2029893), (453, 882757), (591, 676631), (4481, 89241), (13443, 29747)]