20671011

素因数分解:

$3^3\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{263}}^1$

素因数の和:384

約数の個数: 32

約数和(自身を含む): 31933440

約数和(自身を除く): 11262429

約数列:

[1, 3, 9, 27, 41, 71, 123, 213, 263, 369, 639, 789, 1107, 1917, 2367, 2911, 7101, 8733, 10783, 18673, 26199, 32349, 56019, 78597, 97047, 168057, 291141, 504171, 765593, 2296779, 6890337, 20671011]

約数ペア:

[(1, 20671011), (3, 6890337), (9, 2296779), (27, 765593), (41, 504171), (71, 291141), (123, 168057), (213, 97047), (263, 78597), (369, 56019), (639, 32349), (789, 26199), (1107, 18673), (1917, 10783), (2367, 8733), (2911, 7101)]