20199863187

素因数分解:

$3^6\times 7^1\times {\mathrm{331}}^1\times {\mathrm{11959}}^1$

素因数の和:12315

約数の個数: 56

約数和(自身を含む): 34719975680

約数和(自身を除く): 14520112493

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 243, 331, 567, 729, 993, 1701, 2317, 2979, 5103, 6951, 8937, 11959, 20853, 26811, 35877, 62559, 80433, 83713, 107631, 187677, 241299, 251139, 322893, 563031, 753417, 968679, 1689093, 2260251, 2906037, 3958429, 6780753, 8718111, 11875287, 20342259, 27709003, 35625861, 61026777, 83127009, 106877583, 249381027, 320632749, 748143081, 961898247, 2244429243, 2885694741, 6733287729, 20199863187]

約数ペア:

[(1, 20199863187), (3, 6733287729), (7, 2885694741), (9, 2244429243), (21, 961898247), (27, 748143081), (63, 320632749), (81, 249381027), (189, 106877583), (243, 83127009), (331, 61026777), (567, 35625861), (729, 27709003), (993, 20342259), (1701, 11875287), (2317, 8718111), (2979, 6780753), (5103, 3958429), (6951, 2906037), (8937, 2260251), (11959, 1689093), (20853, 968679), (26811, 753417), (35877, 563031), (62559, 322893), (80433, 251139), (83713, 241299), (107631, 187677)]