21000895005

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1427}}^1\times {\mathrm{57713}}^1$

素因数の和:59165

約数の個数: 32

約数和(自身を含む): 35603535744

約数和(自身を除く): 14602640739

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 1427, 4281, 7135, 21405, 24259, 57713, 72777, 121295, 173139, 288565, 363885, 865695, 981121, 2943363, 4905605, 14716815, 82356451, 247069353, 411782255, 1235346765, 1400059667, 4200179001, 7000298335, 21000895005]

約数ペア:

[(1, 21000895005), (3, 7000298335), (5, 4200179001), (15, 1400059667), (17, 1235346765), (51, 411782255), (85, 247069353), (255, 82356451), (1427, 14716815), (4281, 4905605), (7135, 2943363), (21405, 981121), (24259, 865695), (57713, 363885), (72777, 288565), (121295, 173139)]