21420540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{2017}}^1$

素因数の和:2091

約数の個数: 72

約数和(自身を含む): 66109680

約数和(自身を除く): 44689140

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 59, 60, 90, 118, 177, 180, 236, 295, 354, 531, 590, 708, 885, 1062, 1180, 1770, 2017, 2124, 2655, 3540, 4034, 5310, 6051, 8068, 10085, 10620, 12102, 18153, 20170, 24204, 30255, 36306, 40340, 60510, 72612, 90765, 119003, 121020, 181530, 238006, 357009, 363060, 476012, 595015, 714018, 1071027, 1190030, 1428036, 1785045, 2142054, 2380060, 3570090, 4284108, 5355135, 7140180, 10710270, 21420540]

約数ペア:

[(1, 21420540), (2, 10710270), (3, 7140180), (4, 5355135), (5, 4284108), (6, 3570090), (9, 2380060), (10, 2142054), (12, 1785045), (15, 1428036), (18, 1190030), (20, 1071027), (30, 714018), (36, 595015), (45, 476012), (59, 363060), (60, 357009), (90, 238006), (118, 181530), (177, 121020), (180, 119003), (236, 90765), (295, 72612), (354, 60510), (531, 40340), (590, 36306), (708, 30255), (885, 24204), (1062, 20170), (1180, 18153), (1770, 12102), (2017, 10620), (2124, 10085), (2655, 8068), (3540, 6051), (4034, 5310)]