21853188

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{86719}}^1$

素因数の和:86736

約数の個数: 36

約数和(自身を含む): 63132160

約数和(自身を除く): 41278972

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 86719, 173438, 260157, 346876, 520314, 607033, 780471, 1040628, 1214066, 1560942, 1821099, 2428132, 3121884, 3642198, 5463297, 7284396, 10926594, 21853188]

約数ペア:

[(1, 21853188), (2, 10926594), (3, 7284396), (4, 5463297), (6, 3642198), (7, 3121884), (9, 2428132), (12, 1821099), (14, 1560942), (18, 1214066), (21, 1040628), (28, 780471), (36, 607033), (42, 520314), (63, 346876), (84, 260157), (126, 173438), (252, 86719)]