21302176

素因数分解:

$2^5\times 7^1\times {\mathrm{61}}^1\times {\mathrm{1559}}^1$

素因数の和:1637

約数の個数: 48

約数和(自身を含む): 48746880

約数和(自身を除く): 27444704

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 61, 112, 122, 224, 244, 427, 488, 854, 976, 1559, 1708, 1952, 3118, 3416, 6236, 6832, 10913, 12472, 13664, 21826, 24944, 43652, 49888, 87304, 95099, 174608, 190198, 349216, 380396, 665693, 760792, 1331386, 1521584, 2662772, 3043168, 5325544, 10651088, 21302176]

約数ペア:

[(1, 21302176), (2, 10651088), (4, 5325544), (7, 3043168), (8, 2662772), (14, 1521584), (16, 1331386), (28, 760792), (32, 665693), (56, 380396), (61, 349216), (112, 190198), (122, 174608), (224, 95099), (244, 87304), (427, 49888), (488, 43652), (854, 24944), (976, 21826), (1559, 13664), (1708, 12472), (1952, 10913), (3118, 6832), (3416, 6236)]