19948089

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{787}}^1$

素因数の和:885

約数の個数: 32

約数和(自身を含む): 32679936

約数和(自身を除く): 12731847

約数列:

[1, 3, 7, 17, 21, 51, 71, 119, 213, 357, 497, 787, 1207, 1491, 2361, 3621, 5509, 8449, 13379, 16527, 25347, 40137, 55877, 93653, 167631, 280959, 391139, 949909, 1173417, 2849727, 6649363, 19948089]

約数ペア:

[(1, 19948089), (3, 6649363), (7, 2849727), (17, 1173417), (21, 949909), (51, 391139), (71, 280959), (119, 167631), (213, 93653), (357, 55877), (497, 40137), (787, 25347), (1207, 16527), (1491, 13379), (2361, 8449), (3621, 5509)]