20886719

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{1619}}^1$

素因数の和:1742

約数の個数: 16

約数和(自身を含む): 25401600

約数和(自身を除く): 4514881

約数列:

[1, 7, 19, 97, 133, 679, 1619, 1843, 11333, 12901, 30761, 157043, 215327, 1099301, 2983817, 20886719]

約数ペア:

[(1, 20886719), (7, 2983817), (19, 1099301), (97, 215327), (133, 157043), (679, 30761), (1619, 12901), (1843, 11333)]