21130356

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{7129}}^1$

素因数の和:7168

約数の個数: 48

約数和(自身を含む): 55899200

約数和(自身を除く): 34768844

約数列:

[1, 2, 3, 4, 6, 12, 13, 19, 26, 38, 39, 52, 57, 76, 78, 114, 156, 228, 247, 494, 741, 988, 1482, 2964, 7129, 14258, 21387, 28516, 42774, 85548, 92677, 135451, 185354, 270902, 278031, 370708, 406353, 541804, 556062, 812706, 1112124, 1625412, 1760863, 3521726, 5282589, 7043452, 10565178, 21130356]

約数ペア:

[(1, 21130356), (2, 10565178), (3, 7043452), (4, 5282589), (6, 3521726), (12, 1760863), (13, 1625412), (19, 1112124), (26, 812706), (38, 556062), (39, 541804), (52, 406353), (57, 370708), (76, 278031), (78, 270902), (114, 185354), (156, 135451), (228, 92677), (247, 85548), (494, 42774), (741, 28516), (988, 21387), (1482, 14258), (2964, 7129)]