19930672

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{491}}^1$

素因数の和:601

約数の個数: 40

約数和(自身を含む): 40265280

約数和(自身を除く): 20334608

約数列:

[1, 2, 4, 8, 16, 43, 59, 86, 118, 172, 236, 344, 472, 491, 688, 944, 982, 1964, 2537, 3928, 5074, 7856, 10148, 20296, 21113, 28969, 40592, 42226, 57938, 84452, 115876, 168904, 231752, 337808, 463504, 1245667, 2491334, 4982668, 9965336, 19930672]

約数ペア:

[(1, 19930672), (2, 9965336), (4, 4982668), (8, 2491334), (16, 1245667), (43, 463504), (59, 337808), (86, 231752), (118, 168904), (172, 115876), (236, 84452), (344, 57938), (472, 42226), (491, 40592), (688, 28969), (944, 21113), (982, 20296), (1964, 10148), (2537, 7856), (3928, 5074)]