210222789

素因数分解:

$3^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{38651}}^1$

素因数の和:38705

約数の個数: 24

約数和(自身を含む): 334880928

約数和(自身を除く): 124658139

約数列:

[1, 3, 7, 21, 37, 49, 111, 147, 259, 777, 1813, 5439, 38651, 115953, 270557, 811671, 1430087, 1893899, 4290261, 5681697, 10010609, 30031827, 70074263, 210222789]

約数ペア:

[(1, 210222789), (3, 70074263), (7, 30031827), (21, 10010609), (37, 5681697), (49, 4290261), (111, 1893899), (147, 1430087), (259, 811671), (777, 270557), (1813, 115953), (5439, 38651)]