21085064

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{2633}}^1$

素因数の和:2670

約数の個数: 64

約数和(自身を含む): 53101440

約数和(自身を除く): 32016376

約数列:

[1, 2, 4, 7, 8, 11, 13, 14, 22, 26, 28, 44, 52, 56, 77, 88, 91, 104, 143, 154, 182, 286, 308, 364, 572, 616, 728, 1001, 1144, 2002, 2633, 4004, 5266, 8008, 10532, 18431, 21064, 28963, 34229, 36862, 57926, 68458, 73724, 115852, 136916, 147448, 202741, 231704, 239603, 273832, 376519, 405482, 479206, 753038, 810964, 958412, 1506076, 1621928, 1916824, 2635633, 3012152, 5271266, 10542532, 21085064]

約数ペア:

[(1, 21085064), (2, 10542532), (4, 5271266), (7, 3012152), (8, 2635633), (11, 1916824), (13, 1621928), (14, 1506076), (22, 958412), (26, 810964), (28, 753038), (44, 479206), (52, 405482), (56, 376519), (77, 273832), (88, 239603), (91, 231704), (104, 202741), (143, 147448), (154, 136916), (182, 115852), (286, 73724), (308, 68458), (364, 57926), (572, 36862), (616, 34229), (728, 28963), (1001, 21064), (1144, 18431), (2002, 10532), (2633, 8008), (4004, 5266)]