20388676

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{1249}}^1$

素因数の和:1324

約数の個数: 48

約数和(自身を含む): 45360000

約数和(自身を除く): 24971324

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 53, 77, 106, 154, 212, 308, 371, 583, 742, 1166, 1249, 1484, 2332, 2498, 4081, 4996, 8162, 8743, 13739, 16324, 17486, 27478, 34972, 54956, 66197, 96173, 132394, 192346, 264788, 384692, 463379, 728167, 926758, 1456334, 1853516, 2912668, 5097169, 10194338, 20388676]

約数ペア:

[(1, 20388676), (2, 10194338), (4, 5097169), (7, 2912668), (11, 1853516), (14, 1456334), (22, 926758), (28, 728167), (44, 463379), (53, 384692), (77, 264788), (106, 192346), (154, 132394), (212, 96173), (308, 66197), (371, 54956), (583, 34972), (742, 27478), (1166, 17486), (1249, 16324), (1484, 13739), (2332, 8743), (2498, 8162), (4081, 4996)]