28685145

素因数分解:

$3^1\times 5^1\times {\mathrm{89}}^1\times {\mathrm{21487}}^1$

素因数の和:21584

約数の個数: 16

約数和(自身を含む): 46414080

約数和(自身を除く): 17728935

約数列:

[1, 3, 5, 15, 89, 267, 445, 1335, 21487, 64461, 107435, 322305, 1912343, 5737029, 9561715, 28685145]

約数ペア:

[(1, 28685145), (3, 9561715), (5, 5737029), (15, 1912343), (89, 322305), (267, 107435), (445, 64461), (1335, 21487)]