21249942

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{859}}^1$

素因数の和:921

約数の個数: 64

約数和(自身を含む): 52838400

約数和(自身を除く): 31588458

約数列:

[1, 2, 3, 6, 7, 14, 19, 21, 31, 38, 42, 57, 62, 93, 114, 133, 186, 217, 266, 399, 434, 589, 651, 798, 859, 1178, 1302, 1718, 1767, 2577, 3534, 4123, 5154, 6013, 8246, 12026, 12369, 16321, 18039, 24738, 26629, 32642, 36078, 48963, 53258, 79887, 97926, 114247, 159774, 186403, 228494, 342741, 372806, 505951, 559209, 685482, 1011902, 1118418, 1517853, 3035706, 3541657, 7083314, 10624971, 21249942]

約数ペア:

[(1, 21249942), (2, 10624971), (3, 7083314), (6, 3541657), (7, 3035706), (14, 1517853), (19, 1118418), (21, 1011902), (31, 685482), (38, 559209), (42, 505951), (57, 372806), (62, 342741), (93, 228494), (114, 186403), (133, 159774), (186, 114247), (217, 97926), (266, 79887), (399, 53258), (434, 48963), (589, 36078), (651, 32642), (798, 26629), (859, 24738), (1178, 18039), (1302, 16321), (1718, 12369), (1767, 12026), (2577, 8246), (3534, 6013), (4123, 5154)]