28421218

素因数分解:

$2^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{70003}}^1$

素因数の和:70041

約数の個数: 16

約数和(自身を含む): 50402880

約数和(自身を除く): 21981662

約数列:

[1, 2, 7, 14, 29, 58, 203, 406, 70003, 140006, 490021, 980042, 2030087, 4060174, 14210609, 28421218]

約数ペア:

[(1, 28421218), (2, 14210609), (7, 4060174), (14, 2030087), (29, 980042), (58, 490021), (203, 140006), (406, 70003)]