21787373979

素因数分解:

$3^3\times 7^1\times {\mathrm{197}}^1\times {\mathrm{585163}}^1$

素因数の和:585376

約数の個数: 32

約数和(自身を含む): 37075991040

約数和(自身を除く): 15288617061

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 197, 591, 1379, 1773, 4137, 5319, 12411, 37233, 585163, 1755489, 4096141, 5266467, 12288423, 15799401, 36865269, 110595807, 115277111, 345831333, 806939777, 1037493999, 2420819331, 3112481997, 7262457993, 21787373979]

約数ペア:

[(1, 21787373979), (3, 7262457993), (7, 3112481997), (9, 2420819331), (21, 1037493999), (27, 806939777), (63, 345831333), (189, 115277111), (197, 110595807), (591, 36865269), (1379, 15799401), (1773, 12288423), (4137, 5266467), (5319, 4096141), (12411, 1755489), (37233, 585163)]