291257289

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{189251}}^1$

素因数の和:189282

約数の個数: 20

約数和(自身を含む): 457989840

約数和(自身を除く): 166732551

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 189251, 567753, 1703259, 3595769, 5109777, 10787307, 15329331, 32361921, 97085763, 291257289]

約数ペア:

[(1, 291257289), (3, 97085763), (9, 32361921), (19, 15329331), (27, 10787307), (57, 5109777), (81, 3595769), (171, 1703259), (513, 567753), (1539, 189251)]