17980976

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{631}}^1$

素因数の和:789

約数の個数: 40

約数和(自身を含む): 37851744

約数和(自身を除く): 19870768

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 137, 208, 274, 548, 631, 1096, 1262, 1781, 2192, 2524, 3562, 5048, 7124, 8203, 10096, 14248, 16406, 28496, 32812, 65624, 86447, 131248, 172894, 345788, 691576, 1123811, 1383152, 2247622, 4495244, 8990488, 17980976]

約数ペア:

[(1, 17980976), (2, 8990488), (4, 4495244), (8, 2247622), (13, 1383152), (16, 1123811), (26, 691576), (52, 345788), (104, 172894), (137, 131248), (208, 86447), (274, 65624), (548, 32812), (631, 28496), (1096, 16406), (1262, 14248), (1781, 10096), (2192, 8203), (2524, 7124), (3562, 5048)]