21424956

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{83}}^1\times {\mathrm{439}}^1$

素因数の和:543

約数の個数: 72

約数和(自身を含む): 58988160

約数和(自身を除く): 37563204

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 83, 84, 98, 147, 166, 196, 249, 294, 332, 439, 498, 581, 588, 878, 996, 1162, 1317, 1743, 1756, 2324, 2634, 3073, 3486, 4067, 5268, 6146, 6972, 8134, 9219, 12201, 12292, 16268, 18438, 21511, 24402, 36437, 36876, 43022, 48804, 64533, 72874, 86044, 109311, 129066, 145748, 218622, 255059, 258132, 437244, 510118, 765177, 1020236, 1530354, 1785413, 3060708, 3570826, 5356239, 7141652, 10712478, 21424956]

約数ペア:

[(1, 21424956), (2, 10712478), (3, 7141652), (4, 5356239), (6, 3570826), (7, 3060708), (12, 1785413), (14, 1530354), (21, 1020236), (28, 765177), (42, 510118), (49, 437244), (83, 258132), (84, 255059), (98, 218622), (147, 145748), (166, 129066), (196, 109311), (249, 86044), (294, 72874), (332, 64533), (439, 48804), (498, 43022), (581, 36876), (588, 36437), (878, 24402), (996, 21511), (1162, 18438), (1317, 16268), (1743, 12292), (1756, 12201), (2324, 9219), (2634, 8134), (3073, 6972), (3486, 6146), (4067, 5268)]