213040521

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{233}}^1\times {\mathrm{5347}}^1$

素因数の和:5605

約数の個数: 24

約数和(自身を含む): 325372320

約数和(自身を除く): 112331799

約数列:

[1, 3, 9, 19, 57, 171, 233, 699, 2097, 4427, 5347, 13281, 16041, 39843, 48123, 101593, 304779, 914337, 1245851, 3737553, 11212659, 23671169, 71013507, 213040521]

約数ペア:

[(1, 213040521), (3, 71013507), (9, 23671169), (19, 11212659), (57, 3737553), (171, 1245851), (233, 914337), (699, 304779), (2097, 101593), (4427, 48123), (5347, 39843), (13281, 16041)]