21195801

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{347}}^1\times {\mathrm{617}}^1$

素因数の和:981

約数の個数: 24

約数和(自身を含む): 33549984

約数和(自身を除く): 12354183

約数列:

[1, 3, 9, 11, 33, 99, 347, 617, 1041, 1851, 3123, 3817, 5553, 6787, 11451, 20361, 34353, 61083, 214099, 642297, 1926891, 2355089, 7065267, 21195801]

約数ペア:

[(1, 21195801), (3, 7065267), (9, 2355089), (11, 1926891), (33, 642297), (99, 214099), (347, 61083), (617, 34353), (1041, 20361), (1851, 11451), (3123, 6787), (3817, 5553)]