68970321

素因数分解:

$3^2\times 7^1\times {\mathrm{61}}^1\times {\mathrm{131}}^1\times {\mathrm{137}}^1$

素因数の和:342

約数の個数: 48

約数和(自身を含む): 117456768

約数和(自身を除く): 48486447

約数列:

[1, 3, 7, 9, 21, 61, 63, 131, 137, 183, 393, 411, 427, 549, 917, 959, 1179, 1233, 1281, 2751, 2877, 3843, 7991, 8253, 8357, 8631, 17947, 23973, 25071, 53841, 55937, 58499, 71919, 75213, 125629, 161523, 167811, 175497, 376887, 503433, 526491, 1094767, 1130661, 3284301, 7663369, 9852903, 22990107, 68970321]

約数ペア:

[(1, 68970321), (3, 22990107), (7, 9852903), (9, 7663369), (21, 3284301), (61, 1130661), (63, 1094767), (131, 526491), (137, 503433), (183, 376887), (393, 175497), (411, 167811), (427, 161523), (549, 125629), (917, 75213), (959, 71919), (1179, 58499), (1233, 55937), (1281, 53841), (2751, 25071), (2877, 23973), (3843, 17947), (7991, 8631), (8253, 8357)]