21911499

素因数分解:

$3^3\times {\mathrm{103}}^1\times {\mathrm{7879}}^1$

素因数の和:7991

約数の個数: 16

約数和(自身を含む): 32780800

約数和(自身を除く): 10869301

約数列:

[1, 3, 9, 27, 103, 309, 927, 2781, 7879, 23637, 70911, 212733, 811537, 2434611, 7303833, 21911499]

約数ペア:

[(1, 21911499), (3, 7303833), (9, 2434611), (27, 811537), (103, 212733), (309, 70911), (927, 23637), (2781, 7879)]