21067592

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{673}}^1$

素因数の和:742

約数の個数: 64

約数和(自身を含む): 49822080

約数和(自身を除く): 28754488

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 43, 52, 56, 86, 91, 104, 172, 182, 301, 344, 364, 559, 602, 673, 728, 1118, 1204, 1346, 2236, 2408, 2692, 3913, 4472, 4711, 5384, 7826, 8749, 9422, 15652, 17498, 18844, 28939, 31304, 34996, 37688, 57878, 61243, 69992, 115756, 122486, 202573, 231512, 244972, 376207, 405146, 489944, 752414, 810292, 1504828, 1620584, 2633449, 3009656, 5266898, 10533796, 21067592]

約数ペア:

[(1, 21067592), (2, 10533796), (4, 5266898), (7, 3009656), (8, 2633449), (13, 1620584), (14, 1504828), (26, 810292), (28, 752414), (43, 489944), (52, 405146), (56, 376207), (86, 244972), (91, 231512), (104, 202573), (172, 122486), (182, 115756), (301, 69992), (344, 61243), (364, 57878), (559, 37688), (602, 34996), (673, 31304), (728, 28939), (1118, 18844), (1204, 17498), (1346, 15652), (2236, 9422), (2408, 8749), (2692, 7826), (3913, 5384), (4472, 4711)]