821392

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{359}}^1$

素因数の和:391

約数の個数: 40

約数和(自身を含む): 1874880

約数和(自身を除く): 1053488

約数列:

[1, 2, 4, 8, 11, 13, 16, 22, 26, 44, 52, 88, 104, 143, 176, 208, 286, 359, 572, 718, 1144, 1436, 2288, 2872, 3949, 4667, 5744, 7898, 9334, 15796, 18668, 31592, 37336, 51337, 63184, 74672, 102674, 205348, 410696, 821392]

約数ペア:

[(1, 821392), (2, 410696), (4, 205348), (8, 102674), (11, 74672), (13, 63184), (16, 51337), (22, 37336), (26, 31592), (44, 18668), (52, 15796), (88, 9334), (104, 7898), (143, 5744), (176, 4667), (208, 3949), (286, 2872), (359, 2288), (572, 1436), (718, 1144)]