21421167272

素因数分解:

$2^3\times {\mathrm{97}}^1\times {\mathrm{193}}^1\times {\mathrm{281}}^1\times {\mathrm{509}}^1$

素因数の和:1086

約数の個数: 64

約数和(自身を含む): 41014587600

約数和(自身を除く): 19593420328

約数列:

[1, 2, 4, 8, 97, 193, 194, 281, 386, 388, 509, 562, 772, 776, 1018, 1124, 1544, 2036, 2248, 4072, 18721, 27257, 37442, 49373, 54233, 54514, 74884, 98237, 98746, 108466, 109028, 143029, 149768, 196474, 197492, 216932, 218056, 286058, 392948, 394984, 433864, 572116, 785896, 1144232, 5260601, 9528989, 10521202, 13873813, 19057978, 21042404, 27604597, 27747626, 38115956, 42084808, 55209194, 55495252, 76231912, 110418388, 110990504, 220836776, 2677645909, 5355291818, 10710583636, 21421167272]

約数ペア:

[(1, 21421167272), (2, 10710583636), (4, 5355291818), (8, 2677645909), (97, 220836776), (193, 110990504), (194, 110418388), (281, 76231912), (386, 55495252), (388, 55209194), (509, 42084808), (562, 38115956), (772, 27747626), (776, 27604597), (1018, 21042404), (1124, 19057978), (1544, 13873813), (2036, 10521202), (2248, 9528989), (4072, 5260601), (18721, 1144232), (27257, 785896), (37442, 572116), (49373, 433864), (54233, 394984), (54514, 392948), (74884, 286058), (98237, 218056), (98746, 216932), (108466, 197492), (109028, 196474), (143029, 149768)]