20239947

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{1901}}^1$

素因数の和:1940

約数の個数: 36

約数和(自身を含む): 36198864

約数和(自身を除く): 15958917

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 169, 273, 507, 819, 1183, 1521, 1901, 3549, 5703, 10647, 13307, 17109, 24713, 39921, 74139, 119763, 172991, 222417, 321269, 518973, 963807, 1556919, 2248883, 2891421, 6746649, 20239947]

約数ペア:

[(1, 20239947), (3, 6746649), (7, 2891421), (9, 2248883), (13, 1556919), (21, 963807), (39, 518973), (63, 321269), (91, 222417), (117, 172991), (169, 119763), (273, 74139), (507, 39921), (819, 24713), (1183, 17109), (1521, 13307), (1901, 10647), (3549, 5703)]