291216989

素因数分解:

$7^1\times {\mathrm{61}}^1\times {\mathrm{79}}^1\times {\mathrm{89}}^1\times {\mathrm{97}}^1$

素因数の和:333

約数の個数: 32

約数和(自身を含む): 349977600

約数和(自身を除く): 58760611

約数列:

[1, 7, 61, 79, 89, 97, 427, 553, 623, 679, 4819, 5429, 5917, 7031, 7663, 8633, 33733, 38003, 41419, 49217, 53641, 60431, 428891, 467443, 526613, 682007, 3002237, 3272101, 3686291, 4774049, 41602427, 291216989]

約数ペア:

[(1, 291216989), (7, 41602427), (61, 4774049), (79, 3686291), (89, 3272101), (97, 3002237), (427, 682007), (553, 526613), (623, 467443), (679, 428891), (4819, 60431), (5429, 53641), (5917, 49217), (7031, 41419), (7663, 38003), (8633, 33733)]