21494336

素因数分解:

$2^6\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{313}}^1$

素因数の和:391

約数の個数: 56

約数和(自身を含む): 45460920

約数和(自身を除く): 23966584

約数列:

[1, 2, 4, 8, 16, 29, 32, 37, 58, 64, 74, 116, 148, 232, 296, 313, 464, 592, 626, 928, 1073, 1184, 1252, 1856, 2146, 2368, 2504, 4292, 5008, 8584, 9077, 10016, 11581, 17168, 18154, 20032, 23162, 34336, 36308, 46324, 68672, 72616, 92648, 145232, 185296, 290464, 335849, 370592, 580928, 671698, 741184, 1343396, 2686792, 5373584, 10747168, 21494336]

約数ペア:

[(1, 21494336), (2, 10747168), (4, 5373584), (8, 2686792), (16, 1343396), (29, 741184), (32, 671698), (37, 580928), (58, 370592), (64, 335849), (74, 290464), (116, 185296), (148, 145232), (232, 92648), (296, 72616), (313, 68672), (464, 46324), (592, 36308), (626, 34336), (928, 23162), (1073, 20032), (1184, 18154), (1252, 17168), (1856, 11581), (2146, 10016), (2368, 9077), (2504, 8584), (4292, 5008)]