20023017

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{107}}^1$

素因数の和:210

約数の個数: 48

約数和(自身を含む): 33488640

約数和(自身を除く): 13465623

約数列:

[1, 3, 7, 19, 21, 49, 57, 67, 107, 133, 147, 201, 321, 399, 469, 749, 931, 1273, 1407, 2033, 2247, 2793, 3283, 3819, 5243, 6099, 7169, 8911, 9849, 14231, 15729, 21507, 26733, 42693, 50183, 62377, 99617, 136211, 150549, 187131, 298851, 351281, 408633, 953477, 1053843, 2860431, 6674339, 20023017]

約数ペア:

[(1, 20023017), (3, 6674339), (7, 2860431), (19, 1053843), (21, 953477), (49, 408633), (57, 351281), (67, 298851), (107, 187131), (133, 150549), (147, 136211), (201, 99617), (321, 62377), (399, 50183), (469, 42693), (749, 26733), (931, 21507), (1273, 15729), (1407, 14231), (2033, 9849), (2247, 8911), (2793, 7169), (3283, 6099), (3819, 5243)]