20891916

素因数分解:

$2^2\times 3^2\times {\mathrm{580331}}^1$

素因数の和:580341

約数の個数: 18

約数和(自身を含む): 52810212

約数和(自身を除く): 31918296

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 580331, 1160662, 1740993, 2321324, 3481986, 5222979, 6963972, 10445958, 20891916]

約数ペア:

[(1, 20891916), (2, 10445958), (3, 6963972), (4, 5222979), (6, 3481986), (9, 2321324), (12, 1740993), (18, 1160662), (36, 580331)]