21863601

素因数分解:

$3^4\times {\mathrm{47}}^1\times {\mathrm{5743}}^1$

素因数の和:5802

約数の個数: 20

約数和(自身を含む): 33361152

約数和(自身を除く): 11497551

約数列:

[1, 3, 9, 27, 47, 81, 141, 423, 1269, 3807, 5743, 17229, 51687, 155061, 269921, 465183, 809763, 2429289, 7287867, 21863601]

約数ペア:

[(1, 21863601), (3, 7287867), (9, 2429289), (27, 809763), (47, 465183), (81, 269921), (141, 155061), (423, 51687), (1269, 17229), (3807, 5743)]