21090993

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{91303}}^1$

素因数の和:91324

約数の個数: 16

約数和(自身を含む): 35060736

約数和(自身を除く): 13969743

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 91303, 273909, 639121, 1004333, 1917363, 3012999, 7030331, 21090993]

約数ペア:

[(1, 21090993), (3, 7030331), (7, 3012999), (11, 1917363), (21, 1004333), (33, 639121), (77, 273909), (231, 91303)]