19157072

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{1223}}^1$

素因数の和:1331

約数の個数: 40

約数和(自身を含む): 40979520

約数和(自身を除く): 21822448

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 89, 176, 178, 356, 712, 979, 1223, 1424, 1958, 2446, 3916, 4892, 7832, 9784, 13453, 15664, 19568, 26906, 53812, 107624, 108847, 215248, 217694, 435388, 870776, 1197317, 1741552, 2394634, 4789268, 9578536, 19157072]

約数ペア:

[(1, 19157072), (2, 9578536), (4, 4789268), (8, 2394634), (11, 1741552), (16, 1197317), (22, 870776), (44, 435388), (88, 217694), (89, 215248), (176, 108847), (178, 107624), (356, 53812), (712, 26906), (979, 19568), (1223, 15664), (1424, 13453), (1958, 9784), (2446, 7832), (3916, 4892)]