21103641

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{317}}^1\times {\mathrm{569}}^1$

素因数の和:905

約数の個数: 24

約数和(自身を含む): 32989320

約数和(自身を除く): 11885679

約数列:

[1, 3, 9, 13, 39, 117, 317, 569, 951, 1707, 2853, 4121, 5121, 7397, 12363, 22191, 37089, 66573, 180373, 541119, 1623357, 2344849, 7034547, 21103641]

約数ペア:

[(1, 21103641), (3, 7034547), (9, 2344849), (13, 1623357), (39, 541119), (117, 180373), (317, 66573), (569, 37089), (951, 22191), (1707, 12363), (2853, 7397), (4121, 5121)]