21082129335

素因数分解:

$3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{70123}}^1$

素因数の和:70285

約数の個数: 64

約数和(自身を含む): 39987509760

約数和(自身を除く): 18905380425

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 85, 131, 135, 153, 255, 393, 459, 655, 765, 1179, 1965, 2227, 2295, 3537, 5895, 6681, 11135, 17685, 20043, 33405, 60129, 70123, 100215, 210369, 300645, 350615, 631107, 1051845, 1192091, 1893321, 3155535, 3576273, 5960455, 9186113, 9466605, 10728819, 17881365, 27558339, 32186457, 45930565, 53644095, 82675017, 137791695, 156163921, 160932285, 248025051, 413375085, 468491763, 780819605, 1240125255, 1405475289, 2342458815, 4216425867, 7027376445, 21082129335]

約数ペア:

[(1, 21082129335), (3, 7027376445), (5, 4216425867), (9, 2342458815), (15, 1405475289), (17, 1240125255), (27, 780819605), (45, 468491763), (51, 413375085), (85, 248025051), (131, 160932285), (135, 156163921), (153, 137791695), (255, 82675017), (393, 53644095), (459, 45930565), (655, 32186457), (765, 27558339), (1179, 17881365), (1965, 10728819), (2227, 9466605), (2295, 9186113), (3537, 5960455), (5895, 3576273), (6681, 3155535), (11135, 1893321), (17685, 1192091), (20043, 1051845), (33405, 631107), (60129, 350615), (70123, 300645), (100215, 210369)]