28378305

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{33191}}^1$

素因数の和:33221

約数の個数: 24

約数和(自身を含む): 51779520

約数和(自身を除く): 23401215

約数列:

[1, 3, 5, 9, 15, 19, 45, 57, 95, 171, 285, 855, 33191, 99573, 165955, 298719, 497865, 630629, 1493595, 1891887, 3153145, 5675661, 9459435, 28378305]

約数ペア:

[(1, 28378305), (3, 9459435), (5, 5675661), (9, 3153145), (15, 1891887), (19, 1493595), (45, 630629), (57, 497865), (95, 298719), (171, 165955), (285, 99573), (855, 33191)]