21463442

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{151}}^1$

素因数の和:255

約数の個数: 64

約数和(自身を含む): 44126208

約数和(自身を除く): 22662766

約数列:

[1, 2, 7, 11, 13, 14, 22, 26, 71, 77, 91, 142, 143, 151, 154, 182, 286, 302, 497, 781, 923, 994, 1001, 1057, 1562, 1661, 1846, 1963, 2002, 2114, 3322, 3926, 5467, 6461, 10153, 10721, 10934, 11627, 12922, 13741, 20306, 21442, 21593, 23254, 27482, 43186, 71071, 75047, 117931, 139373, 142142, 150094, 151151, 235862, 278746, 302302, 825517, 975611, 1533103, 1651034, 1951222, 3066206, 10731721, 21463442]

約数ペア:

[(1, 21463442), (2, 10731721), (7, 3066206), (11, 1951222), (13, 1651034), (14, 1533103), (22, 975611), (26, 825517), (71, 302302), (77, 278746), (91, 235862), (142, 151151), (143, 150094), (151, 142142), (154, 139373), (182, 117931), (286, 75047), (302, 71071), (497, 43186), (781, 27482), (923, 23254), (994, 21593), (1001, 21442), (1057, 20306), (1562, 13741), (1661, 12922), (1846, 11627), (1963, 10934), (2002, 10721), (2114, 10153), (3322, 6461), (3926, 5467)]