21828090

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{16921}}^1$

素因数の和:16974

約数の個数: 32

約数和(自身を含む): 53608896

約数和(自身を除く): 31780806

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 43, 86, 129, 215, 258, 430, 645, 1290, 16921, 33842, 50763, 84605, 101526, 169210, 253815, 507630, 727603, 1455206, 2182809, 3638015, 4365618, 7276030, 10914045, 21828090]

約数ペア:

[(1, 21828090), (2, 10914045), (3, 7276030), (5, 4365618), (6, 3638015), (10, 2182809), (15, 1455206), (30, 727603), (43, 507630), (86, 253815), (129, 169210), (215, 101526), (258, 84605), (430, 50763), (645, 33842), (1290, 16921)]