21617928

素因数分解:

$2^3\times 3^4\times {\mathrm{73}}^1\times {\mathrm{457}}^1$

素因数の和:548

約数の個数: 80

約数和(自身を含む): 61513980

約数和(自身を除く): 39896052

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 73, 81, 108, 146, 162, 216, 219, 292, 324, 438, 457, 584, 648, 657, 876, 914, 1314, 1371, 1752, 1828, 1971, 2628, 2742, 3656, 3942, 4113, 5256, 5484, 5913, 7884, 8226, 10968, 11826, 12339, 15768, 16452, 23652, 24678, 32904, 33361, 37017, 47304, 49356, 66722, 74034, 98712, 100083, 133444, 148068, 200166, 266888, 296136, 300249, 400332, 600498, 800664, 900747, 1200996, 1801494, 2401992, 2702241, 3602988, 5404482, 7205976, 10808964, 21617928]

約数ペア:

[(1, 21617928), (2, 10808964), (3, 7205976), (4, 5404482), (6, 3602988), (8, 2702241), (9, 2401992), (12, 1801494), (18, 1200996), (24, 900747), (27, 800664), (36, 600498), (54, 400332), (72, 300249), (73, 296136), (81, 266888), (108, 200166), (146, 148068), (162, 133444), (216, 100083), (219, 98712), (292, 74034), (324, 66722), (438, 49356), (457, 47304), (584, 37017), (648, 33361), (657, 32904), (876, 24678), (914, 23652), (1314, 16452), (1371, 15768), (1752, 12339), (1828, 11826), (1971, 10968), (2628, 8226), (2742, 7884), (3656, 5913), (3942, 5484), (4113, 5256)]