21656136

素因数分解:

$2^3\times 3^1\times {\mathrm{71}}^2\times {\mathrm{179}}^1$

素因数の和:330

約数の個数: 48

約数和(自身を含む): 55220400

約数和(自身を除く): 33564264

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 71, 142, 179, 213, 284, 358, 426, 537, 568, 716, 852, 1074, 1432, 1704, 2148, 4296, 5041, 10082, 12709, 15123, 20164, 25418, 30246, 38127, 40328, 50836, 60492, 76254, 101672, 120984, 152508, 305016, 902339, 1804678, 2707017, 3609356, 5414034, 7218712, 10828068, 21656136]

約数ペア:

[(1, 21656136), (2, 10828068), (3, 7218712), (4, 5414034), (6, 3609356), (8, 2707017), (12, 1804678), (24, 902339), (71, 305016), (142, 152508), (179, 120984), (213, 101672), (284, 76254), (358, 60492), (426, 50836), (537, 40328), (568, 38127), (716, 30246), (852, 25418), (1074, 20164), (1432, 15123), (1704, 12709), (2148, 10082), (4296, 5041)]