20892704

素因数分解:

$2^5\times 7^1\times {\mathrm{19}}^1\times {\mathrm{4909}}^1$

素因数の和:4945

約数の個数: 48

約数和(自身を含む): 49492800

約数和(自身を除く): 28600096

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 32, 38, 56, 76, 112, 133, 152, 224, 266, 304, 532, 608, 1064, 2128, 4256, 4909, 9818, 19636, 34363, 39272, 68726, 78544, 93271, 137452, 157088, 186542, 274904, 373084, 549808, 652897, 746168, 1099616, 1305794, 1492336, 2611588, 2984672, 5223176, 10446352, 20892704]

約数ペア:

[(1, 20892704), (2, 10446352), (4, 5223176), (7, 2984672), (8, 2611588), (14, 1492336), (16, 1305794), (19, 1099616), (28, 746168), (32, 652897), (38, 549808), (56, 373084), (76, 274904), (112, 186542), (133, 157088), (152, 137452), (224, 93271), (266, 78544), (304, 68726), (532, 39272), (608, 34363), (1064, 19636), (2128, 9818), (4256, 4909)]