28281897

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{26407}}^1$

素因数の和:26437

約数の個数: 24

約数和(自身を含む): 49435776

約数和(自身を除く): 21153879

約数列:

[1, 3, 7, 9, 17, 21, 51, 63, 119, 153, 357, 1071, 26407, 79221, 184849, 237663, 448919, 554547, 1346757, 1663641, 3142433, 4040271, 9427299, 28281897]

約数ペア:

[(1, 28281897), (3, 9427299), (7, 4040271), (9, 3142433), (17, 1663641), (21, 1346757), (51, 554547), (63, 448919), (119, 237663), (153, 184849), (357, 79221), (1071, 26407)]