21399411

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{617}}^1\times {\mathrm{1051}}^1$

素因数の和:1682

約数の個数: 16

約数和(自身を含む): 31206528

約数和(自身を除く): 9807117

約数列:

[1, 3, 11, 33, 617, 1051, 1851, 3153, 6787, 11561, 20361, 34683, 648467, 1945401, 7133137, 21399411]

約数ペア:

[(1, 21399411), (3, 7133137), (11, 1945401), (33, 648467), (617, 34683), (1051, 20361), (1851, 11561), (3153, 6787)]