21540277801

素因数分解:

$7^1\times {\mathrm{31}}^2\times {\mathrm{47}}^1\times {\mathrm{193}}^1\times {\mathrm{353}}^1$

素因数の和:662

約数の個数: 48

約数和(自身を含む): 26186982912

約数和(自身を除く): 4646705111

約数列:

[1, 7, 31, 47, 193, 217, 329, 353, 961, 1351, 1457, 2471, 5983, 6727, 9071, 10199, 10943, 16591, 41881, 45167, 63497, 68129, 76601, 116137, 185473, 281201, 316169, 339233, 476903, 514321, 1298311, 1968407, 2111999, 2374631, 3202063, 3600247, 8717231, 14783993, 15943951, 22414441, 61020617, 65471969, 99263953, 111607657, 458303783, 694847671, 3077182543, 21540277801]

約数ペア:

[(1, 21540277801), (7, 3077182543), (31, 694847671), (47, 458303783), (193, 111607657), (217, 99263953), (329, 65471969), (353, 61020617), (961, 22414441), (1351, 15943951), (1457, 14783993), (2471, 8717231), (5983, 3600247), (6727, 3202063), (9071, 2374631), (10199, 2111999), (10943, 1968407), (16591, 1298311), (41881, 514321), (45167, 476903), (63497, 339233), (68129, 316169), (76601, 281201), (116137, 185473)]