20563683

素因数分解:

$3^1\times 7^2\times {\mathrm{59}}^1\times {\mathrm{2371}}^1$

素因数の和:2447

約数の個数: 24

約数和(自身を含む): 32448960

約数和(自身を除く): 11885277

約数列:

[1, 3, 7, 21, 49, 59, 147, 177, 413, 1239, 2371, 2891, 7113, 8673, 16597, 49791, 116179, 139889, 348537, 419667, 979223, 2937669, 6854561, 20563683]

約数ペア:

[(1, 20563683), (3, 6854561), (7, 2937669), (21, 979223), (49, 419667), (59, 348537), (147, 139889), (177, 116179), (413, 49791), (1239, 16597), (2371, 8673), (2891, 7113)]