19888135

素因数分解:

$5^1\times {\mathrm{61}}^1\times {\mathrm{197}}^1\times {\mathrm{331}}^1$

素因数の和:594

約数の個数: 16

約数和(自身を含む): 24453792

約数和(自身を除く): 4565657

約数列:

[1, 5, 61, 197, 305, 331, 985, 1655, 12017, 20191, 60085, 65207, 100955, 326035, 3977627, 19888135]

約数ペア:

[(1, 19888135), (5, 3977627), (61, 326035), (197, 100955), (305, 65207), (331, 60085), (985, 20191), (1655, 12017)]