28690485

素因数分解:

$3^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{21491}}^1$

素因数の和:21588

約数の個数: 16

約数和(自身を含む): 46422720

約数和(自身を除く): 17732235

約数列:

[1, 3, 5, 15, 89, 267, 445, 1335, 21491, 64473, 107455, 322365, 1912699, 5738097, 9563495, 28690485]

約数ペア:

[(1, 28690485), (3, 9563495), (5, 5738097), (15, 1912699), (89, 322365), (267, 107455), (445, 64473), (1335, 21491)]