21973959

素因数分解:

$3^2\times 7^1\times {\mathrm{53}}^1\times {\mathrm{6581}}^1$

素因数の和:6647

約数の個数: 24

約数和(自身を含む): 36964512

約数和(自身を除く): 14990553

約数列:

[1, 3, 7, 9, 21, 53, 63, 159, 371, 477, 1113, 3339, 6581, 19743, 46067, 59229, 138201, 348793, 414603, 1046379, 2441551, 3139137, 7324653, 21973959]

約数ペア:

[(1, 21973959), (3, 7324653), (7, 3139137), (9, 2441551), (21, 1046379), (53, 414603), (63, 348793), (159, 138201), (371, 59229), (477, 46067), (1113, 19743), (3339, 6581)]