28000609

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{389}}^1$

素因数の和:529

約数の個数: 24

約数和(自身を含む): 35479080

約数和(自身を除く): 7478471

約数列:

[1, 7, 13, 49, 91, 113, 389, 637, 791, 1469, 2723, 5057, 5537, 10283, 19061, 35399, 43957, 71981, 247793, 307699, 571441, 2153893, 4000087, 28000609]

約数ペア:

[(1, 28000609), (7, 4000087), (13, 2153893), (49, 571441), (91, 307699), (113, 247793), (389, 71981), (637, 43957), (791, 35399), (1469, 19061), (2723, 10283), (5057, 5537)]