20719923

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{457}}^1$

素因数の和:611

約数の個数: 32

約数和(自身を含む): 33767424

約数和(自身を除く): 13047501

約数列:

[1, 3, 7, 17, 21, 51, 119, 127, 357, 381, 457, 889, 1371, 2159, 2667, 3199, 6477, 7769, 9597, 15113, 23307, 45339, 54383, 58039, 163149, 174117, 406273, 986663, 1218819, 2959989, 6906641, 20719923]

約数ペア:

[(1, 20719923), (3, 6906641), (7, 2959989), (17, 1218819), (21, 986663), (51, 406273), (119, 174117), (127, 163149), (357, 58039), (381, 54383), (457, 45339), (889, 23307), (1371, 15113), (2159, 9597), (2667, 7769), (3199, 6477)]