210561687

素因数分解:

$3^5\times 7^1\times {\mathrm{123787}}^1$

素因数の和:123809

約数の個数: 24

約数和(自身を含む): 360470656

約数和(自身を除く): 149908969

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 243, 567, 1701, 123787, 371361, 866509, 1114083, 2599527, 3342249, 7798581, 10026747, 23395743, 30080241, 70187229, 210561687]

約数ペア:

[(1, 210561687), (3, 70187229), (7, 30080241), (9, 23395743), (21, 10026747), (27, 7798581), (63, 3342249), (81, 2599527), (189, 1114083), (243, 866509), (567, 371361), (1701, 123787)]