21012081660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{4025303}}^1$

素因数の和:4025347

約数の個数: 72

約数和(自身を含む): 65934479520

約数和(自身を除く): 44922397860

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 29, 30, 36, 45, 58, 60, 87, 90, 116, 145, 174, 180, 261, 290, 348, 435, 522, 580, 870, 1044, 1305, 1740, 2610, 5220, 4025303, 8050606, 12075909, 16101212, 20126515, 24151818, 36227727, 40253030, 48303636, 60379545, 72455454, 80506060, 116733787, 120759090, 144910908, 181138635, 233467574, 241518180, 350201361, 362277270, 466935148, 583668935, 700402722, 724554540, 1050604083, 1167337870, 1400805444, 1751006805, 2101208166, 2334675740, 3502013610, 4202416332, 5253020415, 7004027220, 10506040830, 21012081660]

約数ペア:

[(1, 21012081660), (2, 10506040830), (3, 7004027220), (4, 5253020415), (5, 4202416332), (6, 3502013610), (9, 2334675740), (10, 2101208166), (12, 1751006805), (15, 1400805444), (18, 1167337870), (20, 1050604083), (29, 724554540), (30, 700402722), (36, 583668935), (45, 466935148), (58, 362277270), (60, 350201361), (87, 241518180), (90, 233467574), (116, 181138635), (145, 144910908), (174, 120759090), (180, 116733787), (261, 80506060), (290, 72455454), (348, 60379545), (435, 48303636), (522, 40253030), (580, 36227727), (870, 24151818), (1044, 20126515), (1305, 16101212), (1740, 12075909), (2610, 8050606), (5220, 4025303)]