21137915378

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{252731}}^1$

素因数の和:252854

約数の個数: 32

約数和(自身を含む): 34937671680

約数和(自身を除く): 13799756302

約数列:

[1, 2, 19, 31, 38, 62, 71, 142, 589, 1178, 1349, 2201, 2698, 4402, 41819, 83638, 252731, 505462, 4801889, 7834661, 9603778, 15669322, 17943901, 35887802, 148858559, 297717118, 340934119, 556260931, 681868238, 1112521862, 10568957689, 21137915378]

約数ペア:

[(1, 21137915378), (2, 10568957689), (19, 1112521862), (31, 681868238), (38, 556260931), (62, 340934119), (71, 297717118), (142, 148858559), (589, 35887802), (1178, 17943901), (1349, 15669322), (2201, 9603778), (2698, 7834661), (4402, 4801889), (41819, 505462), (83638, 252731)]