28243917

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{1201}}^1$

素因数の和:1290

約数の個数: 32

約数和(自身を含む): 45772160

約数和(自身を除く): 17528243

約数列:

[1, 3, 9, 13, 27, 39, 67, 117, 201, 351, 603, 871, 1201, 1809, 2613, 3603, 7839, 10809, 15613, 23517, 32427, 46839, 80467, 140517, 241401, 421551, 724203, 1046071, 2172609, 3138213, 9414639, 28243917]

約数ペア:

[(1, 28243917), (3, 9414639), (9, 3138213), (13, 2172609), (27, 1046071), (39, 724203), (67, 421551), (117, 241401), (201, 140517), (351, 80467), (603, 46839), (871, 32427), (1201, 23517), (1809, 15613), (2613, 10809), (3603, 7839)]