21087248

素因数分解:

$2^4\times 7^2\times {\mathrm{13}}^1\times {\mathrm{2069}}^1$

素因数の和:2104

約数の個数: 60

約数和(自身を含む): 51207660

約数和(自身を除く): 30120412

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 49, 52, 56, 91, 98, 104, 112, 182, 196, 208, 364, 392, 637, 728, 784, 1274, 1456, 2069, 2548, 4138, 5096, 8276, 10192, 14483, 16552, 26897, 28966, 33104, 53794, 57932, 101381, 107588, 115864, 188279, 202762, 215176, 231728, 376558, 405524, 430352, 753116, 811048, 1317953, 1506232, 1622096, 2635906, 3012464, 5271812, 10543624, 21087248]

約数ペア:

[(1, 21087248), (2, 10543624), (4, 5271812), (7, 3012464), (8, 2635906), (13, 1622096), (14, 1506232), (16, 1317953), (26, 811048), (28, 753116), (49, 430352), (52, 405524), (56, 376558), (91, 231728), (98, 215176), (104, 202762), (112, 188279), (182, 115864), (196, 107588), (208, 101381), (364, 57932), (392, 53794), (637, 33104), (728, 28966), (784, 26897), (1274, 16552), (1456, 14483), (2069, 10192), (2548, 8276), (4138, 5096)]