20995136

素因数分解:

$2^6\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{839}}^1$

素因数の和:891

約数の個数: 56

約数和(自身を含む): 46085760

約数和(自身を除く): 25090624

約数列:

[1, 2, 4, 8, 16, 17, 23, 32, 34, 46, 64, 68, 92, 136, 184, 272, 368, 391, 544, 736, 782, 839, 1088, 1472, 1564, 1678, 3128, 3356, 6256, 6712, 12512, 13424, 14263, 19297, 25024, 26848, 28526, 38594, 53696, 57052, 77188, 114104, 154376, 228208, 308752, 328049, 456416, 617504, 656098, 912832, 1235008, 1312196, 2624392, 5248784, 10497568, 20995136]

約数ペア:

[(1, 20995136), (2, 10497568), (4, 5248784), (8, 2624392), (16, 1312196), (17, 1235008), (23, 912832), (32, 656098), (34, 617504), (46, 456416), (64, 328049), (68, 308752), (92, 228208), (136, 154376), (184, 114104), (272, 77188), (368, 57052), (391, 53696), (544, 38594), (736, 28526), (782, 26848), (839, 25024), (1088, 19297), (1472, 14263), (1564, 13424), (1678, 12512), (3128, 6712), (3356, 6256)]