21937916

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{5479}}^1$

素因数の和:5514

約数の個数: 48

約数和(自身を含む): 51555840

約数和(自身を除く): 29617924

約数列:

[1, 2, 4, 7, 11, 13, 14, 22, 26, 28, 44, 52, 77, 91, 143, 154, 182, 286, 308, 364, 572, 1001, 2002, 4004, 5479, 10958, 21916, 38353, 60269, 71227, 76706, 120538, 142454, 153412, 241076, 284908, 421883, 498589, 783497, 843766, 997178, 1566994, 1687532, 1994356, 3133988, 5484479, 10968958, 21937916]

約数ペア:

[(1, 21937916), (2, 10968958), (4, 5484479), (7, 3133988), (11, 1994356), (13, 1687532), (14, 1566994), (22, 997178), (26, 843766), (28, 783497), (44, 498589), (52, 421883), (77, 284908), (91, 241076), (143, 153412), (154, 142454), (182, 120538), (286, 76706), (308, 71227), (364, 60269), (572, 38353), (1001, 21916), (2002, 10958), (4004, 5479)]