21433797

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{197}}^1$

素因数の和:378

約数の個数: 48

約数和(自身を含む): 39042432

約数和(自身を除く): 17608635

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 157, 197, 231, 471, 591, 693, 1099, 1379, 1413, 1727, 1773, 2167, 3297, 4137, 5181, 6501, 9891, 12089, 12411, 15169, 15543, 19503, 30929, 36267, 45507, 92787, 108801, 136521, 216503, 278361, 340219, 649509, 1020657, 1948527, 2381533, 3061971, 7144599, 21433797]

約数ペア:

[(1, 21433797), (3, 7144599), (7, 3061971), (9, 2381533), (11, 1948527), (21, 1020657), (33, 649509), (63, 340219), (77, 278361), (99, 216503), (157, 136521), (197, 108801), (231, 92787), (471, 45507), (591, 36267), (693, 30929), (1099, 19503), (1379, 15543), (1413, 15169), (1727, 12411), (1773, 12089), (2167, 9891), (3297, 6501), (4137, 5181)]