18897221521

素因数分解:

${\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{643}}^1\times {\mathrm{877}}^1$

素因数の和:1621

約数の個数: 32

約数和(自身を含む): 20844085248

約数和(自身を除く): 1946863727

約数列:

[1, 23, 31, 47, 643, 713, 877, 1081, 1457, 14789, 19933, 20171, 27187, 30221, 33511, 41219, 458459, 563911, 625301, 695083, 936851, 948037, 1277789, 12969953, 17481241, 21547573, 26503817, 29389147, 402068543, 609587791, 821618327, 18897221521]

約数ペア:

[(1, 18897221521), (23, 821618327), (31, 609587791), (47, 402068543), (643, 29389147), (713, 26503817), (877, 21547573), (1081, 17481241), (1457, 12969953), (14789, 1277789), (19933, 948037), (20171, 936851), (27187, 695083), (30221, 625301), (33511, 563911), (41219, 458459)]