20804994

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{163}}^1\times {\mathrm{1013}}^1$

素因数の和:1191

約数の個数: 48

約数和(自身を含む): 51884352

約数和(自身を除く): 31079358

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 163, 326, 489, 978, 1013, 1141, 1467, 2026, 2282, 2934, 3039, 3423, 6078, 6846, 7091, 9117, 10269, 14182, 18234, 20538, 21273, 42546, 63819, 127638, 165119, 330238, 495357, 990714, 1155833, 1486071, 2311666, 2972142, 3467499, 6934998, 10402497, 20804994]

約数ペア:

[(1, 20804994), (2, 10402497), (3, 6934998), (6, 3467499), (7, 2972142), (9, 2311666), (14, 1486071), (18, 1155833), (21, 990714), (42, 495357), (63, 330238), (126, 165119), (163, 127638), (326, 63819), (489, 42546), (978, 21273), (1013, 20538), (1141, 18234), (1467, 14182), (2026, 10269), (2282, 9117), (2934, 7091), (3039, 6846), (3423, 6078)]