21510368

素因数分解:

$2^5\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{1153}}^1$

素因数の和:1227

約数の個数: 48

約数和(自身を含む): 47110896

約数和(自身を除く): 25600528

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 53, 88, 106, 176, 212, 352, 424, 583, 848, 1153, 1166, 1696, 2306, 2332, 4612, 4664, 9224, 9328, 12683, 18448, 18656, 25366, 36896, 50732, 61109, 101464, 122218, 202928, 244436, 405856, 488872, 672199, 977744, 1344398, 1955488, 2688796, 5377592, 10755184, 21510368]

約数ペア:

[(1, 21510368), (2, 10755184), (4, 5377592), (8, 2688796), (11, 1955488), (16, 1344398), (22, 977744), (32, 672199), (44, 488872), (53, 405856), (88, 244436), (106, 202928), (176, 122218), (212, 101464), (352, 61109), (424, 50732), (583, 36896), (848, 25366), (1153, 18656), (1166, 18448), (1696, 12683), (2306, 9328), (2332, 9224), (4612, 4664)]