19946576

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{5641}}^1$

素因数の和:5679

約数の個数: 40

約数和(自身を含む): 44075304

約数和(自身を除く): 24128728

約数列:

[1, 2, 4, 8, 13, 16, 17, 26, 34, 52, 68, 104, 136, 208, 221, 272, 442, 884, 1768, 3536, 5641, 11282, 22564, 45128, 73333, 90256, 95897, 146666, 191794, 293332, 383588, 586664, 767176, 1173328, 1246661, 1534352, 2493322, 4986644, 9973288, 19946576]

約数ペア:

[(1, 19946576), (2, 9973288), (4, 4986644), (8, 2493322), (13, 1534352), (16, 1246661), (17, 1173328), (26, 767176), (34, 586664), (52, 383588), (68, 293332), (104, 191794), (136, 146666), (208, 95897), (221, 90256), (272, 73333), (442, 45128), (884, 22564), (1768, 11282), (3536, 5641)]