20829928

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{19577}}^1$

素因数の和:19609

約数の個数: 32

約数和(自身を含む): 46987200

約数和(自身を除く): 26157272

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 56, 76, 133, 152, 266, 532, 1064, 19577, 39154, 78308, 137039, 156616, 274078, 371963, 548156, 743926, 1096312, 1487852, 2603741, 2975704, 5207482, 10414964, 20829928]

約数ペア:

[(1, 20829928), (2, 10414964), (4, 5207482), (7, 2975704), (8, 2603741), (14, 1487852), (19, 1096312), (28, 743926), (38, 548156), (56, 371963), (76, 274078), (133, 156616), (152, 137039), (266, 78308), (532, 39154), (1064, 19577)]