213654819

素因数分解:

$3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{97}}^1\times {\mathrm{1979}}^1$

素因数の和:2139

約数の個数: 32

約数和(自身を含む): 335301120

約数和(自身を除く): 121646301

約数列:

[1, 3, 7, 21, 53, 97, 159, 291, 371, 679, 1113, 1979, 2037, 5141, 5937, 13853, 15423, 35987, 41559, 104887, 107961, 191963, 314661, 575889, 734209, 1343741, 2202627, 4031223, 10174039, 30522117, 71218273, 213654819]

約数ペア:

[(1, 213654819), (3, 71218273), (7, 30522117), (21, 10174039), (53, 4031223), (97, 2202627), (159, 1343741), (291, 734209), (371, 575889), (679, 314661), (1113, 191963), (1979, 107961), (2037, 104887), (5141, 41559), (5937, 35987), (13853, 15423)]