21817383

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{653}}^1$

素因数の和:743

約数の個数: 32

約数和(自身を含む): 34991616

約数和(自身を除く): 13174233

約数列:

[1, 3, 7, 21, 37, 43, 111, 129, 259, 301, 653, 777, 903, 1591, 1959, 4571, 4773, 11137, 13713, 24161, 28079, 33411, 72483, 84237, 169127, 196553, 507381, 589659, 1038923, 3116769, 7272461, 21817383]

約数ペア:

[(1, 21817383), (3, 7272461), (7, 3116769), (21, 1038923), (37, 589659), (43, 507381), (111, 196553), (129, 169127), (259, 84237), (301, 72483), (653, 33411), (777, 28079), (903, 24161), (1591, 13713), (1959, 11137), (4571, 4773)]