28640829

素因数分解:

$3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{25733}}^1$

素因数の和:25796

約数の個数: 16

約数和(自身を含む): 44468352

約数和(自身を除く): 15827523

約数列:

[1, 3, 7, 21, 53, 159, 371, 1113, 25733, 77199, 180131, 540393, 1363849, 4091547, 9546943, 28640829]

約数ペア:

[(1, 28640829), (3, 9546943), (7, 4091547), (21, 1363849), (53, 540393), (159, 180131), (371, 77199), (1113, 25733)]