21104397747

素因数分解:

$3^3\times {\mathrm{73}}^1\times {\mathrm{10707457}}^1$

素因数の和:10707539

約数の個数: 16

約数和(自身を含む): 31694075680

約数和(自身を除く): 10589677933

約数列:

[1, 3, 9, 27, 73, 219, 657, 1971, 10707457, 32122371, 96367113, 289101339, 781644361, 2344933083, 7034799249, 21104397747]

約数ペア:

[(1, 21104397747), (3, 7034799249), (9, 2344933083), (27, 781644361), (73, 289101339), (219, 96367113), (657, 32122371), (1971, 10707457)]