21253232

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1327}}^1$

素因数の和:1366

約数の個数: 80

約数和(自身を含む): 55329792

約数和(自身を除く): 34076560

約数列:

[1, 2, 4, 7, 8, 11, 13, 14, 16, 22, 26, 28, 44, 52, 56, 77, 88, 91, 104, 112, 143, 154, 176, 182, 208, 286, 308, 364, 572, 616, 728, 1001, 1144, 1232, 1327, 1456, 2002, 2288, 2654, 4004, 5308, 8008, 9289, 10616, 14597, 16016, 17251, 18578, 21232, 29194, 34502, 37156, 58388, 69004, 74312, 102179, 116776, 120757, 138008, 148624, 189761, 204358, 233552, 241514, 276016, 379522, 408716, 483028, 759044, 817432, 966056, 1328327, 1518088, 1634864, 1932112, 2656654, 3036176, 5313308, 10626616, 21253232]

約数ペア:

[(1, 21253232), (2, 10626616), (4, 5313308), (7, 3036176), (8, 2656654), (11, 1932112), (13, 1634864), (14, 1518088), (16, 1328327), (22, 966056), (26, 817432), (28, 759044), (44, 483028), (52, 408716), (56, 379522), (77, 276016), (88, 241514), (91, 233552), (104, 204358), (112, 189761), (143, 148624), (154, 138008), (176, 120757), (182, 116776), (208, 102179), (286, 74312), (308, 69004), (364, 58388), (572, 37156), (616, 34502), (728, 29194), (1001, 21232), (1144, 18578), (1232, 17251), (1327, 16016), (1456, 14597), (2002, 10616), (2288, 9289), (2654, 8008), (4004, 5308)]