815812263

素因数分解:

$3^3\times 7^1\times {\mathrm{197}}^1\times {\mathrm{21911}}^1$

素因数の和:22124

約数の個数: 32

約数和(自身を含む): 1388344320

約数和(自身を除く): 572532057

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 197, 591, 1379, 1773, 4137, 5319, 12411, 21911, 37233, 65733, 153377, 197199, 460131, 591597, 1380393, 4141179, 4316467, 12949401, 30215269, 38848203, 90645807, 116544609, 271937421, 815812263]

約数ペア:

[(1, 815812263), (3, 271937421), (7, 116544609), (9, 90645807), (21, 38848203), (27, 30215269), (63, 12949401), (189, 4316467), (197, 4141179), (591, 1380393), (1379, 591597), (1773, 460131), (4137, 197199), (5319, 153377), (12411, 65733), (21911, 37233)]