20161121168

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{1861}}^1\times {\mathrm{39829}}^1$

素因数の和:41715

約数の個数: 40

約数和(自身を含む): 41383210680

約数和(自身を除く): 21222089512

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 1861, 3722, 7444, 14888, 29776, 31637, 39829, 63274, 79658, 126548, 159316, 253096, 318632, 506192, 637264, 677093, 1354186, 2708372, 5416744, 10833488, 74121769, 148243538, 296487076, 592974152, 1185948304, 1260070073, 2520140146, 5040280292, 10080560584, 20161121168]

約数ペア:

[(1, 20161121168), (2, 10080560584), (4, 5040280292), (8, 2520140146), (16, 1260070073), (17, 1185948304), (34, 592974152), (68, 296487076), (136, 148243538), (272, 74121769), (1861, 10833488), (3722, 5416744), (7444, 2708372), (14888, 1354186), (29776, 677093), (31637, 637264), (39829, 506192), (63274, 318632), (79658, 253096), (126548, 159316)]