21262038

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{193}}^1$

素因数の和:309

約数の個数: 64

約数和(自身を含む): 50806272

約数和(自身を除く): 29544234

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 43, 61, 86, 122, 129, 183, 193, 258, 301, 366, 386, 427, 579, 602, 854, 903, 1158, 1281, 1351, 1806, 2562, 2623, 2702, 4053, 5246, 7869, 8106, 8299, 11773, 15738, 16598, 18361, 23546, 24897, 35319, 36722, 49794, 55083, 58093, 70638, 82411, 110166, 116186, 164822, 174279, 247233, 348558, 494466, 506239, 1012478, 1518717, 3037434, 3543673, 7087346, 10631019, 21262038]

約数ペア:

[(1, 21262038), (2, 10631019), (3, 7087346), (6, 3543673), (7, 3037434), (14, 1518717), (21, 1012478), (42, 506239), (43, 494466), (61, 348558), (86, 247233), (122, 174279), (129, 164822), (183, 116186), (193, 110166), (258, 82411), (301, 70638), (366, 58093), (386, 55083), (427, 49794), (579, 36722), (602, 35319), (854, 24897), (903, 23546), (1158, 18361), (1281, 16598), (1351, 15738), (1806, 11773), (2562, 8299), (2623, 8106), (2702, 7869), (4053, 5246)]