20641338

素因数分解:

$2^1\times 3^3\times {\mathrm{37}}^1\times {\mathrm{10331}}^1$

素因数の和:10379

約数の個数: 32

約数和(自身を含む): 47113920

約数和(自身を除く): 26472582

約数列:

[1, 2, 3, 6, 9, 18, 27, 37, 54, 74, 111, 222, 333, 666, 999, 1998, 10331, 20662, 30993, 61986, 92979, 185958, 278937, 382247, 557874, 764494, 1146741, 2293482, 3440223, 6880446, 10320669, 20641338]

約数ペア:

[(1, 20641338), (2, 10320669), (3, 6880446), (6, 3440223), (9, 2293482), (18, 1146741), (27, 764494), (37, 557874), (54, 382247), (74, 278937), (111, 185958), (222, 92979), (333, 61986), (666, 30993), (999, 20662), (1998, 10331)]