21747138

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{173}}^1$

素因数の和:299

約数の個数: 64

約数和(自身を含む): 51916032

約数和(自身を除く): 30168894

約数列:

[1, 2, 3, 6, 7, 14, 21, 41, 42, 73, 82, 123, 146, 173, 219, 246, 287, 346, 438, 511, 519, 574, 861, 1022, 1038, 1211, 1533, 1722, 2422, 2993, 3066, 3633, 5986, 7093, 7266, 8979, 12629, 14186, 17958, 20951, 21279, 25258, 37887, 41902, 42558, 49651, 62853, 75774, 88403, 99302, 125706, 148953, 176806, 265209, 297906, 517789, 530418, 1035578, 1553367, 3106734, 3624523, 7249046, 10873569, 21747138]

約数ペア:

[(1, 21747138), (2, 10873569), (3, 7249046), (6, 3624523), (7, 3106734), (14, 1553367), (21, 1035578), (41, 530418), (42, 517789), (73, 297906), (82, 265209), (123, 176806), (146, 148953), (173, 125706), (219, 99302), (246, 88403), (287, 75774), (346, 62853), (438, 49651), (511, 42558), (519, 41902), (574, 37887), (861, 25258), (1022, 21279), (1038, 20951), (1211, 17958), (1533, 14186), (1722, 12629), (2422, 8979), (2993, 7266), (3066, 7093), (3633, 5986)]