21990738

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{47599}}^1$

素因数の和:47622

約数の個数: 32

約数和(自身を含む): 54835200

約数和(自身を除く): 32844462

約数列:

[1, 2, 3, 6, 7, 11, 14, 21, 22, 33, 42, 66, 77, 154, 231, 462, 47599, 95198, 142797, 285594, 333193, 523589, 666386, 999579, 1047178, 1570767, 1999158, 3141534, 3665123, 7330246, 10995369, 21990738]

約数ペア:

[(1, 21990738), (2, 10995369), (3, 7330246), (6, 3665123), (7, 3141534), (11, 1999158), (14, 1570767), (21, 1047178), (22, 999579), (33, 666386), (42, 523589), (66, 333193), (77, 285594), (154, 142797), (231, 95198), (462, 47599)]