20565499521

素因数分解:

$3^1\times 7^1\times {\mathrm{2243}}^1\times {\mathrm{436607}}^1$

素因数の和:438860

約数の個数: 16

約数和(自身を含む): 31351947264

約数和(自身を除く): 10786447743

約数列:

[1, 3, 7, 21, 2243, 6729, 15701, 47103, 436607, 1309821, 3056249, 9168747, 979309501, 2937928503, 6855166507, 20565499521]

約数ペア:

[(1, 20565499521), (3, 6855166507), (7, 2937928503), (21, 979309501), (2243, 9168747), (6729, 3056249), (15701, 1309821), (47103, 436607)]