21497795277

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{320609}}^1$

素因数の和:320753

約数の個数: 32

約数和(自身を含む): 34143682560

約数和(自身を除く): 12645887283

約数列:

[1, 3, 7, 21, 31, 93, 103, 217, 309, 651, 721, 2163, 3193, 9579, 22351, 67053, 320609, 961827, 2244263, 6732789, 9938879, 29816637, 33022727, 69572153, 99068181, 208716459, 231159089, 693477267, 1023704537, 3071113611, 7165931759, 21497795277]

約数ペア:

[(1, 21497795277), (3, 7165931759), (7, 3071113611), (21, 1023704537), (31, 693477267), (93, 231159089), (103, 208716459), (217, 99068181), (309, 69572153), (651, 33022727), (721, 29816637), (2163, 9938879), (3193, 6732789), (9579, 2244263), (22351, 961827), (67053, 320609)]