28109901

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1\times {\mathrm{109}}^1$

素因数の和:249

約数の個数: 32

約数和(自身を含む): 40550400

約数和(自身を除く): 12440499

約数列:

[1, 3, 31, 47, 59, 93, 109, 141, 177, 327, 1457, 1829, 2773, 3379, 4371, 5123, 5487, 6431, 8319, 10137, 15369, 19293, 85963, 158813, 199361, 257889, 302257, 476439, 598083, 906771, 9369967, 28109901]

約数ペア:

[(1, 28109901), (3, 9369967), (31, 906771), (47, 598083), (59, 476439), (93, 302257), (109, 257889), (141, 199361), (177, 158813), (327, 85963), (1457, 19293), (1829, 15369), (2773, 10137), (3379, 8319), (4371, 6431), (5123, 5487)]