21244590

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{137}}^1\times {\mathrm{1723}}^1$

素因数の和:1873

約数の個数: 48

約数和(自身を含む): 55671408

約数和(自身を除く): 34426818

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 137, 274, 411, 685, 822, 1233, 1370, 1723, 2055, 2466, 3446, 4110, 5169, 6165, 8615, 10338, 12330, 15507, 17230, 25845, 31014, 51690, 77535, 155070, 236051, 472102, 708153, 1180255, 1416306, 2124459, 2360510, 3540765, 4248918, 7081530, 10622295, 21244590]

約数ペア:

[(1, 21244590), (2, 10622295), (3, 7081530), (5, 4248918), (6, 3540765), (9, 2360510), (10, 2124459), (15, 1416306), (18, 1180255), (30, 708153), (45, 472102), (90, 236051), (137, 155070), (274, 77535), (411, 51690), (685, 31014), (822, 25845), (1233, 17230), (1370, 15507), (1723, 12330), (2055, 10338), (2466, 8615), (3446, 6165), (4110, 5169)]