218993486

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{131}}^1\times {\mathrm{457}}^1$

素因数の和:680

約数の個数: 32

約数和(自身を含む): 348226560

約数和(自身を除く): 129233074

約数列:

[1, 2, 31, 59, 62, 118, 131, 262, 457, 914, 1829, 3658, 4061, 7729, 8122, 14167, 15458, 26963, 28334, 53926, 59867, 119734, 239599, 479198, 835853, 1671706, 1855877, 3532153, 3711754, 7064306, 109496743, 218993486]

約数ペア:

[(1, 218993486), (2, 109496743), (31, 7064306), (59, 3711754), (62, 3532153), (118, 1855877), (131, 1671706), (262, 835853), (457, 479198), (914, 239599), (1829, 119734), (3658, 59867), (4061, 53926), (7729, 28334), (8122, 26963), (14167, 15458)]