21821898

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{43}}^2\times {\mathrm{281}}^1$

素因数の和:379

約数の個数: 48

約数和(自身を含む): 51247296

約数和(自身を除く): 29425398

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 43, 86, 129, 258, 281, 301, 562, 602, 843, 903, 1686, 1806, 1849, 1967, 3698, 3934, 5547, 5901, 11094, 11802, 12083, 12943, 24166, 25886, 36249, 38829, 72498, 77658, 84581, 169162, 253743, 507486, 519569, 1039138, 1558707, 3117414, 3636983, 7273966, 10910949, 21821898]

約数ペア:

[(1, 21821898), (2, 10910949), (3, 7273966), (6, 3636983), (7, 3117414), (14, 1558707), (21, 1039138), (42, 519569), (43, 507486), (86, 253743), (129, 169162), (258, 84581), (281, 77658), (301, 72498), (562, 38829), (602, 36249), (843, 25886), (903, 24166), (1686, 12943), (1806, 12083), (1849, 11802), (1967, 11094), (3698, 5901), (3934, 5547)]