20379489

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{487}}^1$

素因数の和:569

約数の個数: 32

約数和(自身を含む): 31153920

約数和(自身を除く): 10774431

約数列:

[1, 3, 13, 29, 37, 39, 87, 111, 377, 481, 487, 1073, 1131, 1443, 1461, 3219, 6331, 13949, 14123, 18019, 18993, 41847, 42369, 54057, 183599, 234247, 522551, 550797, 702741, 1567653, 6793163, 20379489]

約数ペア:

[(1, 20379489), (3, 6793163), (13, 1567653), (29, 702741), (37, 550797), (39, 522551), (87, 234247), (111, 183599), (377, 54057), (481, 42369), (487, 41847), (1073, 18993), (1131, 18019), (1443, 14123), (1461, 13949), (3219, 6331)]