21271412

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{283}}^1$

素因数の和:372

約数の個数: 48

約数和(自身を含む): 41986560

約数和(自身を除く): 20715148

約数列:

[1, 2, 4, 19, 23, 38, 43, 46, 76, 86, 92, 172, 283, 437, 566, 817, 874, 989, 1132, 1634, 1748, 1978, 3268, 3956, 5377, 6509, 10754, 12169, 13018, 18791, 21508, 24338, 26036, 37582, 48676, 75164, 123671, 231211, 247342, 279887, 462422, 494684, 559774, 924844, 1119548, 5317853, 10635706, 21271412]

約数ペア:

[(1, 21271412), (2, 10635706), (4, 5317853), (19, 1119548), (23, 924844), (38, 559774), (43, 494684), (46, 462422), (76, 279887), (86, 247342), (92, 231211), (172, 123671), (283, 75164), (437, 48676), (566, 37582), (817, 26036), (874, 24338), (989, 21508), (1132, 18791), (1634, 13018), (1748, 12169), (1978, 10754), (3268, 6509), (3956, 5377)]