21396549

素因数分解:

$3^1\times {\mathrm{149}}^1\times {\mathrm{151}}^1\times {\mathrm{317}}^1$

素因数の和:620

約数の個数: 16

約数和(自身を含む): 29001600

約数和(自身を除く): 7605051

約数列:

[1, 3, 149, 151, 317, 447, 453, 951, 22499, 47233, 47867, 67497, 141699, 143601, 7132183, 21396549]

約数ペア:

[(1, 21396549), (3, 7132183), (149, 143601), (151, 141699), (317, 67497), (447, 47867), (453, 47233), (951, 22499)]