21215161

素因数分解:

${\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{97}}^1\times {\mathrm{337}}^1$

素因数の和:504

約数の個数: 16

約数和(自身を含む): 23849280

約数和(自身を除く): 2634119

約数列:

[1, 11, 59, 97, 337, 649, 1067, 3707, 5723, 19883, 32689, 62953, 218713, 359579, 1928651, 21215161]

約数ペア:

[(1, 21215161), (11, 1928651), (59, 359579), (97, 218713), (337, 62953), (649, 32689), (1067, 19883), (3707, 5723)]