21508713578872

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{12165561979}}^1$

素因数の和:12165562015

約数の個数: 32

約数和(自身を含む): 45985824284400

約数和(自身を除く): 24477110705528

約数列:

[1, 2, 4, 8, 13, 17, 26, 34, 52, 68, 104, 136, 221, 442, 884, 1768, 12165561979, 24331123958, 48662247916, 97324495832, 158152305727, 206814553643, 316304611454, 413629107286, 632609222908, 827258214572, 1265218445816, 1654516429144, 2688589197359, 5377178394718, 10754356789436, 21508713578872]

約数ペア:

[(1, 21508713578872), (2, 10754356789436), (4, 5377178394718), (8, 2688589197359), (13, 1654516429144), (17, 1265218445816), (26, 827258214572), (34, 632609222908), (52, 413629107286), (68, 316304611454), (104, 206814553643), (136, 158152305727), (221, 97324495832), (442, 48662247916), (884, 24331123958), (1768, 12165561979)]