21455800996

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{683567}}^1$

素因数の和:683656

約数の個数: 48

約数和(自身を含む): 45935769600

約数和(自身を除く): 24479968604

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 59, 76, 118, 133, 236, 266, 413, 532, 826, 1121, 1652, 2242, 4484, 7847, 15694, 31388, 683567, 1367134, 2734268, 4784969, 9569938, 12987773, 19139876, 25975546, 40330453, 51951092, 80660906, 90914411, 161321812, 181828822, 282313171, 363657644, 564626342, 766278607, 1129252684, 1532557214, 3065114428, 5363950249, 10727900498, 21455800996]

約数ペア:

[(1, 21455800996), (2, 10727900498), (4, 5363950249), (7, 3065114428), (14, 1532557214), (19, 1129252684), (28, 766278607), (38, 564626342), (59, 363657644), (76, 282313171), (118, 181828822), (133, 161321812), (236, 90914411), (266, 80660906), (413, 51951092), (532, 40330453), (826, 25975546), (1121, 19139876), (1652, 12987773), (2242, 9569938), (4484, 4784969), (7847, 2734268), (15694, 1367134), (31388, 683567)]