21506536

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{101}}^1\times {\mathrm{619}}^1$

素因数の和:769

約数の個数: 32

約数和(自身を含む): 41738400

約数和(自身を除く): 20231864

約数列:

[1, 2, 4, 8, 43, 86, 101, 172, 202, 344, 404, 619, 808, 1238, 2476, 4343, 4952, 8686, 17372, 26617, 34744, 53234, 62519, 106468, 125038, 212936, 250076, 500152, 2688317, 5376634, 10753268, 21506536]

約数ペア:

[(1, 21506536), (2, 10753268), (4, 5376634), (8, 2688317), (43, 500152), (86, 250076), (101, 212936), (172, 125038), (202, 106468), (344, 62519), (404, 53234), (619, 34744), (808, 26617), (1238, 17372), (2476, 8686), (4343, 4952)]