21814947

素因数分解:

$3^3\times 7^2\times {\mathrm{11}}^1\times {\mathrm{1499}}^1$

素因数の和:1533

約数の個数: 48

約数和(自身を含む): 41040000

約数和(自身を除く): 19225053

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 49, 63, 77, 99, 147, 189, 231, 297, 441, 539, 693, 1323, 1499, 1617, 2079, 4497, 4851, 10493, 13491, 14553, 16489, 31479, 40473, 49467, 73451, 94437, 115423, 148401, 220353, 283311, 346269, 445203, 661059, 807961, 1038807, 1983177, 2423883, 3116421, 7271649, 21814947]

約数ペア:

[(1, 21814947), (3, 7271649), (7, 3116421), (9, 2423883), (11, 1983177), (21, 1038807), (27, 807961), (33, 661059), (49, 445203), (63, 346269), (77, 283311), (99, 220353), (147, 148401), (189, 115423), (231, 94437), (297, 73451), (441, 49467), (539, 40473), (693, 31479), (1323, 16489), (1499, 14553), (1617, 13491), (2079, 10493), (4497, 4851)]