21000331761

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{170647}}^1$

素因数の和:170813

約数の個数: 32

約数和(自身を含む): 31453839360

約数和(自身を除く): 10453507599

約数列:

[1, 3, 17, 19, 51, 57, 127, 323, 381, 969, 2159, 2413, 6477, 7239, 41021, 123063, 170647, 511941, 2900999, 3242293, 8702997, 9726879, 21672169, 55118981, 65016507, 165356943, 368426873, 411771211, 1105280619, 1235313633, 7000110587, 21000331761]

約数ペア:

[(1, 21000331761), (3, 7000110587), (17, 1235313633), (19, 1105280619), (51, 411771211), (57, 368426873), (127, 165356943), (323, 65016507), (381, 55118981), (969, 21672169), (2159, 9726879), (2413, 8702997), (6477, 3242293), (7239, 2900999), (41021, 511941), (123063, 170647)]