21265587

素因数分解:

$3^2\times 7^1\times {\mathrm{227}}^1\times {\mathrm{1487}}^1$

素因数の和:1727

約数の個数: 24

約数和(自身を含む): 35283456

約数和(自身を除く): 14017869

約数列:

[1, 3, 7, 9, 21, 63, 227, 681, 1487, 1589, 2043, 4461, 4767, 10409, 13383, 14301, 31227, 93681, 337549, 1012647, 2362843, 3037941, 7088529, 21265587]

約数ペア:

[(1, 21265587), (3, 7088529), (7, 3037941), (9, 2362843), (21, 1012647), (63, 337549), (227, 93681), (681, 31227), (1487, 14301), (1589, 13383), (2043, 10409), (4461, 4767)]