2921919

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1$

素因数の和:180

約数の個数: 48

約数和(自身を含む): 5362560

約数和(自身を除く): 2440641

約数列:

[1, 3, 7, 11, 13, 21, 33, 39, 49, 77, 91, 139, 143, 147, 231, 273, 417, 429, 539, 637, 973, 1001, 1529, 1617, 1807, 1911, 2919, 3003, 4587, 5421, 6811, 7007, 10703, 12649, 19877, 20433, 21021, 32109, 37947, 59631, 74921, 88543, 139139, 224763, 265629, 417417, 973973, 2921919]

約数ペア:

[(1, 2921919), (3, 973973), (7, 417417), (11, 265629), (13, 224763), (21, 139139), (33, 88543), (39, 74921), (49, 59631), (77, 37947), (91, 32109), (139, 21021), (143, 20433), (147, 19877), (231, 12649), (273, 10703), (417, 7007), (429, 6811), (539, 5421), (637, 4587), (973, 3003), (1001, 2919), (1529, 1911), (1617, 1807)]