20943653241

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{2467}}^1\times {\mathrm{21277}}^1$

素因数の和:23773

約数の個数: 32

約数和(自身を含む): 33609026560

約数和(自身を除く): 12665373319

約数列:

[1, 3, 7, 19, 21, 57, 133, 399, 2467, 7401, 17269, 21277, 46873, 51807, 63831, 140619, 148939, 328111, 404263, 446817, 984333, 1212789, 2829841, 8489523, 52490359, 157471077, 367432513, 997316821, 1102297539, 2991950463, 6981217747, 20943653241]

約数ペア:

[(1, 20943653241), (3, 6981217747), (7, 2991950463), (19, 1102297539), (21, 997316821), (57, 367432513), (133, 157471077), (399, 52490359), (2467, 8489523), (7401, 2829841), (17269, 1212789), (21277, 984333), (46873, 446817), (51807, 404263), (63831, 328111), (140619, 148939)]