20432391

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{1249}}^1$

素因数の和:1319

約数の個数: 32

約数和(自身を含む): 33600000

約数和(自身を除く): 13167609

約数列:

[1, 3, 7, 19, 21, 41, 57, 123, 133, 287, 399, 779, 861, 1249, 2337, 3747, 5453, 8743, 16359, 23731, 26229, 51209, 71193, 153627, 166117, 358463, 498351, 972971, 1075389, 2918913, 6810797, 20432391]

約数ペア:

[(1, 20432391), (3, 6810797), (7, 2918913), (19, 1075389), (21, 972971), (41, 498351), (57, 358463), (123, 166117), (133, 153627), (287, 71193), (399, 51209), (779, 26229), (861, 23731), (1249, 16359), (2337, 8743), (3747, 5453)]