28697163

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{1237}}^1$

素因数の和:1307

約数の個数: 32

約数和(自身を含む): 45162240

約数和(自身を除く): 16465077

約数列:

[1, 3, 11, 19, 33, 37, 57, 111, 209, 407, 627, 703, 1221, 1237, 2109, 3711, 7733, 13607, 23199, 23503, 40821, 45769, 70509, 137307, 258533, 503459, 775599, 869611, 1510377, 2608833, 9565721, 28697163]

約数ペア:

[(1, 28697163), (3, 9565721), (11, 2608833), (19, 1510377), (33, 869611), (37, 775599), (57, 503459), (111, 258533), (209, 137307), (407, 70509), (627, 45769), (703, 40821), (1221, 23503), (1237, 23199), (2109, 13607), (3711, 7733)]