21901451

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{6659}}^1$

素因数の和:6706

約数の個数: 16

約数和(自身を含む): 26853120

約数和(自身を除く): 4951669

約数列:

[1, 11, 13, 23, 143, 253, 299, 3289, 6659, 73249, 86567, 153157, 952237, 1684727, 1991041, 21901451]

約数ペア:

[(1, 21901451), (11, 1991041), (13, 1684727), (23, 952237), (143, 153157), (253, 86567), (299, 73249), (3289, 6659)]