21159711

素因数分解:

$3^5\times {\mathrm{19}}^1\times {\mathrm{4583}}^1$

素因数の和:4617

約数の個数: 24

約数和(自身を含む): 33371520

約数和(自身を除く): 12211809

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 243, 513, 1539, 4583, 4617, 13749, 41247, 87077, 123741, 261231, 371223, 783693, 1113669, 2351079, 7053237, 21159711]

約数ペア:

[(1, 21159711), (3, 7053237), (9, 2351079), (19, 1113669), (27, 783693), (57, 371223), (81, 261231), (171, 123741), (243, 87077), (513, 41247), (1539, 13749), (4583, 4617)]