21969290

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{283}}^1\times {\mathrm{1109}}^1$

素因数の和:1406

約数の個数: 32

約数和(自身を含む): 45394560

約数和(自身を除く): 23425270

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 283, 566, 1109, 1415, 1981, 2218, 2830, 3962, 5545, 7763, 9905, 11090, 15526, 19810, 38815, 77630, 313847, 627694, 1569235, 2196929, 3138470, 4393858, 10984645, 21969290]

約数ペア:

[(1, 21969290), (2, 10984645), (5, 4393858), (7, 3138470), (10, 2196929), (14, 1569235), (35, 627694), (70, 313847), (283, 77630), (566, 38815), (1109, 19810), (1415, 15526), (1981, 11090), (2218, 9905), (2830, 7763), (3962, 5545)]