20016965

素因数分解:

$5^1\times {\mathrm{73}}^1\times {\mathrm{173}}^1\times {\mathrm{317}}^1$

素因数の和:568

約数の個数: 16

約数和(自身を含む): 24567408

約数和(自身を除く): 4550443

約数列:

[1, 5, 73, 173, 317, 365, 865, 1585, 12629, 23141, 54841, 63145, 115705, 274205, 4003393, 20016965]

約数ペア:

[(1, 20016965), (5, 4003393), (73, 274205), (173, 115705), (317, 63145), (365, 54841), (865, 23141), (1585, 12629)]