28236691

素因数分解:

$7^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{641}}^1$

素因数の和:715

約数の個数: 24

約数和(自身を含む): 35130240

約数和(自身を除く): 6893549

約数列:

[1, 7, 29, 31, 49, 203, 217, 641, 899, 1421, 1519, 4487, 6293, 18589, 19871, 31409, 44051, 130123, 139097, 576259, 910861, 973679, 4033813, 28236691]

約数ペア:

[(1, 28236691), (7, 4033813), (29, 973679), (31, 910861), (49, 576259), (203, 139097), (217, 130123), (641, 44051), (899, 31409), (1421, 19871), (1519, 18589), (4487, 6293)]