21415953

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{449}}^1\times {\mathrm{1223}}^1$

素因数の和:1688

約数の個数: 16

約数和(自身を含む): 30844800

約数和(自身を除く): 9428847

約数列:

[1, 3, 13, 39, 449, 1223, 1347, 3669, 5837, 15899, 17511, 47697, 549127, 1647381, 7138651, 21415953]

約数ペア:

[(1, 21415953), (3, 7138651), (13, 1647381), (39, 549127), (449, 47697), (1223, 17511), (1347, 15899), (3669, 5837)]