21774987

素因数分解:

$3^5\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{113}}^1$

素因数の和:202

約数の個数: 48

約数和(自身を含む): 36018528

約数和(自身を除く): 14243541

約数列:

[1, 3, 9, 13, 27, 39, 61, 81, 113, 117, 183, 243, 339, 351, 549, 793, 1017, 1053, 1469, 1647, 2379, 3051, 3159, 4407, 4941, 6893, 7137, 9153, 13221, 14823, 20679, 21411, 27459, 39663, 62037, 64233, 89609, 118989, 186111, 192699, 268827, 356967, 558333, 806481, 1674999, 2419443, 7258329, 21774987]

約数ペア:

[(1, 21774987), (3, 7258329), (9, 2419443), (13, 1674999), (27, 806481), (39, 558333), (61, 356967), (81, 268827), (113, 192699), (117, 186111), (183, 118989), (243, 89609), (339, 64233), (351, 62037), (549, 39663), (793, 27459), (1017, 21411), (1053, 20679), (1469, 14823), (1647, 13221), (2379, 9153), (3051, 7137), (3159, 6893), (4407, 4941)]