20901276

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{1123}}^1$

素因数の和:1191

約数の個数: 72

約数和(自身を含む): 58915584

約数和(自身を除く): 38014308

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 47, 66, 94, 99, 132, 141, 188, 198, 282, 396, 423, 517, 564, 846, 1034, 1123, 1551, 1692, 2068, 2246, 3102, 3369, 4492, 4653, 6204, 6738, 9306, 10107, 12353, 13476, 18612, 20214, 24706, 37059, 40428, 49412, 52781, 74118, 105562, 111177, 148236, 158343, 211124, 222354, 316686, 444708, 475029, 580591, 633372, 950058, 1161182, 1741773, 1900116, 2322364, 3483546, 5225319, 6967092, 10450638, 20901276]

約数ペア:

[(1, 20901276), (2, 10450638), (3, 6967092), (4, 5225319), (6, 3483546), (9, 2322364), (11, 1900116), (12, 1741773), (18, 1161182), (22, 950058), (33, 633372), (36, 580591), (44, 475029), (47, 444708), (66, 316686), (94, 222354), (99, 211124), (132, 158343), (141, 148236), (188, 111177), (198, 105562), (282, 74118), (396, 52781), (423, 49412), (517, 40428), (564, 37059), (846, 24706), (1034, 20214), (1123, 18612), (1551, 13476), (1692, 12353), (2068, 10107), (2246, 9306), (3102, 6738), (3369, 6204), (4492, 4653)]