21253323

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{613}}^1$

素因数の和:763

約数の個数: 32

約数和(自身を含む): 35209216

約数和(自身を除く): 13955893

約数列:

[1, 3, 7, 13, 21, 39, 91, 127, 273, 381, 613, 889, 1651, 1839, 2667, 4291, 4953, 7969, 11557, 12873, 23907, 34671, 55783, 77851, 167349, 233553, 544957, 1012063, 1634871, 3036189, 7084441, 21253323]

約数ペア:

[(1, 21253323), (3, 7084441), (7, 3036189), (13, 1634871), (21, 1012063), (39, 544957), (91, 233553), (127, 167349), (273, 77851), (381, 55783), (613, 34671), (889, 23907), (1651, 12873), (1839, 11557), (2667, 7969), (4291, 4953)]