19975835

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{251}}^1\times {\mathrm{1447}}^1$

素因数の和:1714

約数の個数: 16

約数和(自身を含む): 26272512

約数和(自身を除く): 6296677

約数列:

[1, 5, 11, 55, 251, 1255, 1447, 2761, 7235, 13805, 15917, 79585, 363197, 1815985, 3995167, 19975835]

約数ペア:

[(1, 19975835), (5, 3995167), (11, 1815985), (55, 363197), (251, 79585), (1255, 15917), (1447, 13805), (2761, 7235)]