20742912287

素因数分解:

${\mathrm{17}}^2\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{197}}^1\times {\mathrm{229}}^1$

素因数の和:540

約数の個数: 48

約数和(自身を含む): 23375864160

約数和(自身を除く): 2632951873

約数列:

[1, 17, 37, 43, 197, 229, 289, 629, 731, 1591, 3349, 3893, 7289, 8471, 8473, 9847, 10693, 12427, 27047, 45113, 56933, 66181, 123913, 144007, 144041, 167399, 313427, 364339, 459799, 766921, 1669181, 1939859, 2106521, 2448119, 2448697, 2845783, 5328259, 6193763, 13037657, 28376077, 32977603, 71774783, 90580403, 105293971, 482393309, 560619251, 1220171311, 20742912287]

約数ペア:

[(1, 20742912287), (17, 1220171311), (37, 560619251), (43, 482393309), (197, 105293971), (229, 90580403), (289, 71774783), (629, 32977603), (731, 28376077), (1591, 13037657), (3349, 6193763), (3893, 5328259), (7289, 2845783), (8471, 2448697), (8473, 2448119), (9847, 2106521), (10693, 1939859), (12427, 1669181), (27047, 766921), (45113, 459799), (56933, 364339), (66181, 313427), (123913, 167399), (144007, 144041)]