21604572

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{613}}^1$

素因数の和:723

約数の個数: 72

約数和(自身を含む): 60343920

約数和(自身を除く): 38739348

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 18, 22, 33, 36, 44, 66, 89, 99, 132, 178, 198, 267, 356, 396, 534, 613, 801, 979, 1068, 1226, 1602, 1839, 1958, 2452, 2937, 3204, 3678, 3916, 5517, 5874, 6743, 7356, 8811, 11034, 11748, 13486, 17622, 20229, 22068, 26972, 35244, 40458, 54557, 60687, 80916, 109114, 121374, 163671, 218228, 242748, 327342, 491013, 600127, 654684, 982026, 1200254, 1800381, 1964052, 2400508, 3600762, 5401143, 7201524, 10802286, 21604572]

約数ペア:

[(1, 21604572), (2, 10802286), (3, 7201524), (4, 5401143), (6, 3600762), (9, 2400508), (11, 1964052), (12, 1800381), (18, 1200254), (22, 982026), (33, 654684), (36, 600127), (44, 491013), (66, 327342), (89, 242748), (99, 218228), (132, 163671), (178, 121374), (198, 109114), (267, 80916), (356, 60687), (396, 54557), (534, 40458), (613, 35244), (801, 26972), (979, 22068), (1068, 20229), (1226, 17622), (1602, 13486), (1839, 11748), (1958, 11034), (2452, 8811), (2937, 7356), (3204, 6743), (3678, 5874), (3916, 5517)]