20585916

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{43987}}^1$

素因数の和:44010

約数の個数: 36

約数和(自身を含む): 56040712

約数和(自身を除く): 35454796

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 234, 468, 43987, 87974, 131961, 175948, 263922, 395883, 527844, 571831, 791766, 1143662, 1583532, 1715493, 2287324, 3430986, 5146479, 6861972, 10292958, 20585916]

約数ペア:

[(1, 20585916), (2, 10292958), (3, 6861972), (4, 5146479), (6, 3430986), (9, 2287324), (12, 1715493), (13, 1583532), (18, 1143662), (26, 791766), (36, 571831), (39, 527844), (52, 395883), (78, 263922), (117, 175948), (156, 131961), (234, 87974), (468, 43987)]