20213331855

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{313}}^1\times {\mathrm{1697}}^1$

素因数の和:2120

約数の個数: 64

約数和(自身を含む): 33781777920

約数和(自身を除く): 13568446065

約数列:

[1, 3, 5, 15, 43, 59, 129, 177, 215, 295, 313, 645, 885, 939, 1565, 1697, 2537, 4695, 5091, 7611, 8485, 12685, 13459, 18467, 25455, 38055, 40377, 55401, 67295, 72971, 92335, 100123, 201885, 218913, 277005, 300369, 364855, 500615, 531161, 794081, 1094565, 1501845, 1593483, 2382243, 2655805, 3970405, 4305289, 7967415, 11911215, 12915867, 21526445, 22839923, 31338499, 64579335, 68519769, 94015497, 114199615, 156692495, 342598845, 470077485, 1347555457, 4042666371, 6737777285, 20213331855]

約数ペア:

[(1, 20213331855), (3, 6737777285), (5, 4042666371), (15, 1347555457), (43, 470077485), (59, 342598845), (129, 156692495), (177, 114199615), (215, 94015497), (295, 68519769), (313, 64579335), (645, 31338499), (885, 22839923), (939, 21526445), (1565, 12915867), (1697, 11911215), (2537, 7967415), (4695, 4305289), (5091, 3970405), (7611, 2655805), (8485, 2382243), (12685, 1593483), (13459, 1501845), (18467, 1094565), (25455, 794081), (38055, 531161), (40377, 500615), (55401, 364855), (67295, 300369), (72971, 277005), (92335, 218913), (100123, 201885)]