21507176

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{158141}}^1$

素因数の和:158164

約数の個数: 16

約数和(自身を含む): 42698340

約数和(自身を除く): 21191164

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 158141, 316282, 632564, 1265128, 2688397, 5376794, 10753588, 21507176]

約数ペア:

[(1, 21507176), (2, 10753588), (4, 5376794), (8, 2688397), (17, 1265128), (34, 632564), (68, 316282), (136, 158141)]