20988474

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{6563}}^1$

素因数の和:6622

約数の個数: 32

約数和(自身を含む): 46315584

約数和(自身を除く): 25327110

約数列:

[1, 2, 3, 6, 13, 26, 39, 41, 78, 82, 123, 246, 533, 1066, 1599, 3198, 6563, 13126, 19689, 39378, 85319, 170638, 255957, 269083, 511914, 538166, 807249, 1614498, 3498079, 6996158, 10494237, 20988474]

約数ペア:

[(1, 20988474), (2, 10494237), (3, 6996158), (6, 3498079), (13, 1614498), (26, 807249), (39, 538166), (41, 511914), (78, 269083), (82, 255957), (123, 170638), (246, 85319), (533, 39378), (1066, 19689), (1599, 13126), (3198, 6563)]