21438424

素因数分解:

$2^3\times 7^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{307}}^1$

素因数の和:392

約数の個数: 64

約数和(自身を含む): 48787200

約数和(自身を除く): 27348776

約数列:

[1, 2, 4, 7, 8, 14, 28, 29, 43, 56, 58, 86, 116, 172, 203, 232, 301, 307, 344, 406, 602, 614, 812, 1204, 1228, 1247, 1624, 2149, 2408, 2456, 2494, 4298, 4988, 8596, 8729, 8903, 9976, 13201, 17192, 17458, 17806, 26402, 34916, 35612, 52804, 62321, 69832, 71224, 92407, 105608, 124642, 184814, 249284, 369628, 382829, 498568, 739256, 765658, 1531316, 2679803, 3062632, 5359606, 10719212, 21438424]

約数ペア:

[(1, 21438424), (2, 10719212), (4, 5359606), (7, 3062632), (8, 2679803), (14, 1531316), (28, 765658), (29, 739256), (43, 498568), (56, 382829), (58, 369628), (86, 249284), (116, 184814), (172, 124642), (203, 105608), (232, 92407), (301, 71224), (307, 69832), (344, 62321), (406, 52804), (602, 35612), (614, 34916), (812, 26402), (1204, 17806), (1228, 17458), (1247, 17192), (1624, 13201), (2149, 9976), (2408, 8903), (2456, 8729), (2494, 8596), (4298, 4988)]