21000742066

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{269981}}^1$

素因数の和:270114

約数の個数: 32

約数和(自身を含む): 34989667200

約数和(自身を除く): 13988925134

約数列:

[1, 2, 19, 23, 38, 46, 89, 178, 437, 874, 1691, 2047, 3382, 4094, 38893, 77786, 269981, 539962, 5129639, 6209563, 10259278, 12419126, 24028309, 48056618, 117981697, 235963394, 456537871, 552651107, 913075742, 1105302214, 10500371033, 21000742066]

約数ペア:

[(1, 21000742066), (2, 10500371033), (19, 1105302214), (23, 913075742), (38, 552651107), (46, 456537871), (89, 235963394), (178, 117981697), (437, 48056618), (874, 24028309), (1691, 12419126), (2047, 10259278), (3382, 6209563), (4094, 5129639), (38893, 539962), (77786, 269981)]