19531504

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{71807}}^1$

素因数の和:71832

約数の個数: 20

約数和(自身を含む): 40068864

約数和(自身を除く): 20537360

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 71807, 143614, 287228, 574456, 1148912, 1220719, 2441438, 4882876, 9765752, 19531504]

約数ペア:

[(1, 19531504), (2, 9765752), (4, 4882876), (8, 2441438), (16, 1220719), (17, 1148912), (34, 574456), (68, 287228), (136, 143614), (272, 71807)]