21493620

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{751}}^1$

素因数の和:822

約数の個数: 96

約数和(自身を含む): 68221440

約数和(自身を除く): 46727820

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 27, 30, 36, 45, 53, 54, 60, 90, 106, 108, 135, 159, 180, 212, 265, 270, 318, 477, 530, 540, 636, 751, 795, 954, 1060, 1431, 1502, 1590, 1908, 2253, 2385, 2862, 3004, 3180, 3755, 4506, 4770, 5724, 6759, 7155, 7510, 9012, 9540, 11265, 13518, 14310, 15020, 20277, 22530, 27036, 28620, 33795, 39803, 40554, 45060, 67590, 79606, 81108, 101385, 119409, 135180, 159212, 199015, 202770, 238818, 358227, 398030, 405540, 477636, 597045, 716454, 796060, 1074681, 1194090, 1432908, 1791135, 2149362, 2388180, 3582270, 4298724, 5373405, 7164540, 10746810, 21493620]

約数ペア:

[(1, 21493620), (2, 10746810), (3, 7164540), (4, 5373405), (5, 4298724), (6, 3582270), (9, 2388180), (10, 2149362), (12, 1791135), (15, 1432908), (18, 1194090), (20, 1074681), (27, 796060), (30, 716454), (36, 597045), (45, 477636), (53, 405540), (54, 398030), (60, 358227), (90, 238818), (106, 202770), (108, 199015), (135, 159212), (159, 135180), (180, 119409), (212, 101385), (265, 81108), (270, 79606), (318, 67590), (477, 45060), (530, 40554), (540, 39803), (636, 33795), (751, 28620), (795, 27036), (954, 22530), (1060, 20277), (1431, 15020), (1502, 14310), (1590, 13518), (1908, 11265), (2253, 9540), (2385, 9012), (2862, 7510), (3004, 7155), (3180, 6759), (3755, 5724), (4506, 4770)]