25335219

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{103}}^1$

素因数の和:196

約数の個数: 64

約数和(自身を含む): 45287424

約数和(自身を除く): 19952205

約数列:

[1, 3, 7, 13, 17, 21, 39, 51, 53, 91, 103, 119, 159, 221, 273, 309, 357, 371, 663, 689, 721, 901, 1113, 1339, 1547, 1751, 2067, 2163, 2703, 4017, 4641, 4823, 5253, 5459, 6307, 9373, 11713, 12257, 14469, 16377, 18921, 22763, 28119, 35139, 36771, 38213, 68289, 70967, 81991, 92803, 114639, 159341, 212901, 245973, 278409, 478023, 496769, 649621, 1206439, 1490307, 1948863, 3619317, 8445073, 25335219]

約数ペア:

[(1, 25335219), (3, 8445073), (7, 3619317), (13, 1948863), (17, 1490307), (21, 1206439), (39, 649621), (51, 496769), (53, 478023), (91, 278409), (103, 245973), (119, 212901), (159, 159341), (221, 114639), (273, 92803), (309, 81991), (357, 70967), (371, 68289), (663, 38213), (689, 36771), (721, 35139), (901, 28119), (1113, 22763), (1339, 18921), (1547, 16377), (1751, 14469), (2067, 12257), (2163, 11713), (2703, 9373), (4017, 6307), (4641, 5459), (4823, 5253)]