21870416

素因数分解:

$2^4\times {\mathrm{47}}^1\times {\mathrm{127}}^1\times {\mathrm{229}}^1$

素因数の和:411

約数の個数: 40

約数和(自身を含む): 43806720

約数和(自身を除く): 21936304

約数列:

[1, 2, 4, 8, 16, 47, 94, 127, 188, 229, 254, 376, 458, 508, 752, 916, 1016, 1832, 2032, 3664, 5969, 10763, 11938, 21526, 23876, 29083, 43052, 47752, 58166, 86104, 95504, 116332, 172208, 232664, 465328, 1366901, 2733802, 5467604, 10935208, 21870416]

約数ペア:

[(1, 21870416), (2, 10935208), (4, 5467604), (8, 2733802), (16, 1366901), (47, 465328), (94, 232664), (127, 172208), (188, 116332), (229, 95504), (254, 86104), (376, 58166), (458, 47752), (508, 43052), (752, 29083), (916, 23876), (1016, 21526), (1832, 11938), (2032, 10763), (3664, 5969)]