21051792325

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{33997}}^1$

素因数の和:34102

約数の個数: 48

約数和(自身を含む): 29139277824

約数和(自身を除く): 8087485499

約数列:

[1, 5, 17, 25, 31, 47, 85, 155, 235, 425, 527, 775, 799, 1175, 1457, 2635, 3995, 7285, 13175, 19975, 24769, 33997, 36425, 123845, 169985, 577949, 619225, 849925, 1053907, 1597859, 2889745, 5269535, 7989295, 14448725, 17916419, 26347675, 27163603, 39946475, 49533629, 89582095, 135818015, 247668145, 447910475, 679090075, 842071693, 1238340725, 4210358465, 21051792325]

約数ペア:

[(1, 21051792325), (5, 4210358465), (17, 1238340725), (25, 842071693), (31, 679090075), (47, 447910475), (85, 247668145), (155, 135818015), (235, 89582095), (425, 49533629), (527, 39946475), (775, 27163603), (799, 26347675), (1175, 17916419), (1457, 14448725), (2635, 7989295), (3995, 5269535), (7285, 2889745), (13175, 1597859), (19975, 1053907), (24769, 849925), (33997, 619225), (36425, 577949), (123845, 169985)]