21152803503

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{678823}}^1$

素因数の和:678903

約数の個数: 32

約数和(自身を含む): 32844220416

約数和(自身を除く): 11691416913

約数列:

[1, 3, 13, 17, 39, 47, 51, 141, 221, 611, 663, 799, 1833, 2397, 10387, 31161, 678823, 2036469, 8824699, 11539991, 26474097, 31904681, 34619973, 95714043, 150019883, 414760853, 450059649, 542379577, 1244282559, 1627138731, 7050934501, 21152803503]

約数ペア:

[(1, 21152803503), (3, 7050934501), (13, 1627138731), (17, 1244282559), (39, 542379577), (47, 450059649), (51, 414760853), (141, 150019883), (221, 95714043), (611, 34619973), (663, 31904681), (799, 26474097), (1833, 11539991), (2397, 8824699), (10387, 2036469), (31161, 678823)]