20897028

素因数分解:

$2^2\times 3^5\times {\mathrm{21499}}^1$

素因数の和:21518

約数の個数: 36

約数和(自身を含む): 54782000

約数和(自身を除く): 33884972

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 108, 162, 243, 324, 486, 972, 21499, 42998, 64497, 85996, 128994, 193491, 257988, 386982, 580473, 773964, 1160946, 1741419, 2321892, 3482838, 5224257, 6965676, 10448514, 20897028]

約数ペア:

[(1, 20897028), (2, 10448514), (3, 6965676), (4, 5224257), (6, 3482838), (9, 2321892), (12, 1741419), (18, 1160946), (27, 773964), (36, 580473), (54, 386982), (81, 257988), (108, 193491), (162, 128994), (243, 85996), (324, 64497), (486, 42998), (972, 21499)]