7978131

素因数分解:

$3^2\times 7^2\times {\mathrm{79}}^1\times {\mathrm{229}}^1$

素因数の和:328

約数の個数: 36

約数和(自身を含む): 13634400

約数和(自身を除く): 5656269

約数列:

[1, 3, 7, 9, 21, 49, 63, 79, 147, 229, 237, 441, 553, 687, 711, 1603, 1659, 2061, 3871, 4809, 4977, 11221, 11613, 14427, 18091, 33663, 34839, 54273, 100989, 126637, 162819, 379911, 886459, 1139733, 2659377, 7978131]

約数ペア:

[(1, 7978131), (3, 2659377), (7, 1139733), (9, 886459), (21, 379911), (49, 162819), (63, 126637), (79, 100989), (147, 54273), (229, 34839), (237, 33663), (441, 18091), (553, 14427), (687, 11613), (711, 11221), (1603, 4977), (1659, 4809), (2061, 3871)]