21383117

素因数分解:

$7^1\times {\mathrm{67}}^1\times {\mathrm{127}}^1\times {\mathrm{359}}^1$

素因数の和:560

約数の個数: 16

約数和(自身を含む): 25067520

約数和(自身を除く): 3684403

約数列:

[1, 7, 67, 127, 359, 469, 889, 2513, 8509, 24053, 45593, 59563, 168371, 319151, 3054731, 21383117]

約数ペア:

[(1, 21383117), (7, 3054731), (67, 319151), (127, 168371), (359, 59563), (469, 45593), (889, 24053), (2513, 8509)]