21249524

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{16447}}^1$

素因数の和:16487

約数の個数: 24

約数和(自身を含む): 41448960

約数和(自身を除く): 20199436

約数列:

[1, 2, 4, 17, 19, 34, 38, 68, 76, 323, 646, 1292, 16447, 32894, 65788, 279599, 312493, 559198, 624986, 1118396, 1249972, 5312381, 10624762, 21249524]

約数ペア:

[(1, 21249524), (2, 10624762), (4, 5312381), (17, 1249972), (19, 1118396), (34, 624986), (38, 559198), (68, 312493), (76, 279599), (323, 65788), (646, 32894), (1292, 16447)]