21716695

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{4339}}^1$

素因数の和:4375

約数の個数: 32

約数和(自身を含む): 34997760

約数和(自身を除く): 13281065

約数列:

[1, 5, 7, 11, 13, 35, 55, 65, 77, 91, 143, 385, 455, 715, 1001, 4339, 5005, 21695, 30373, 47729, 56407, 151865, 238645, 282035, 334103, 394849, 620477, 1670515, 1974245, 3102385, 4343339, 21716695]

約数ペア:

[(1, 21716695), (5, 4343339), (7, 3102385), (11, 1974245), (13, 1670515), (35, 620477), (55, 394849), (65, 334103), (77, 282035), (91, 238645), (143, 151865), (385, 56407), (455, 47729), (715, 30373), (1001, 21695), (4339, 5005)]