21709410

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{16829}}^1$

素因数の和:16882

約数の個数: 32

約数和(自身を含む): 53317440

約数和(自身を除く): 31608030

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 43, 86, 129, 215, 258, 430, 645, 1290, 16829, 33658, 50487, 84145, 100974, 168290, 252435, 504870, 723647, 1447294, 2170941, 3618235, 4341882, 7236470, 10854705, 21709410]

約数ペア:

[(1, 21709410), (2, 10854705), (3, 7236470), (5, 4341882), (6, 3618235), (10, 2170941), (15, 1447294), (30, 723647), (43, 504870), (86, 252435), (129, 168290), (215, 100974), (258, 84145), (430, 50487), (645, 33658), (1290, 16829)]