81615618

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{647743}}^1$

素因数の和:647758

約数の個数: 24

約数和(自身を含む): 202096128

約数和(自身を除く): 120480510

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 63, 126, 647743, 1295486, 1943229, 3886458, 4534201, 5829687, 9068402, 11659374, 13602603, 27205206, 40807809, 81615618]

約数ペア:

[(1, 81615618), (2, 40807809), (3, 27205206), (6, 13602603), (7, 11659374), (9, 9068402), (14, 5829687), (18, 4534201), (21, 3886458), (42, 1943229), (63, 1295486), (126, 647743)]