28173561

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{193}}^1\times {\mathrm{197}}^1$

素因数の和:425

約数の個数: 32

約数和(自身を含む): 43021440

約数和(自身を除く): 14847879

約数列:

[1, 3, 13, 19, 39, 57, 193, 197, 247, 579, 591, 741, 2509, 2561, 3667, 3743, 7527, 7683, 11001, 11229, 38021, 47671, 48659, 114063, 143013, 145977, 494273, 722399, 1482819, 2167197, 9391187, 28173561]

約数ペア:

[(1, 28173561), (3, 9391187), (13, 2167197), (19, 1482819), (39, 722399), (57, 494273), (193, 145977), (197, 143013), (247, 114063), (579, 48659), (591, 47671), (741, 38021), (2509, 11229), (2561, 11001), (3667, 7683), (3743, 7527)]