28712817

素因数分解:

$3^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{9697}}^1$

素因数の和:9757

約数の個数: 24

約数和(自身を含む): 48412416

約数和(自身を除く): 19699599

約数列:

[1, 3, 7, 9, 21, 47, 63, 141, 329, 423, 987, 2961, 9697, 29091, 67879, 87273, 203637, 455759, 610911, 1367277, 3190313, 4101831, 9570939, 28712817]

約数ペア:

[(1, 28712817), (3, 9570939), (7, 4101831), (9, 3190313), (21, 1367277), (47, 610911), (63, 455759), (141, 203637), (329, 87273), (423, 67879), (987, 29091), (2961, 9697)]