21119163

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{263}}^1$

素因数の和:379

約数の個数: 32

約数和(自身を含む): 31933440

約数和(自身を除く): 10814277

約数列:

[1, 3, 13, 29, 39, 71, 87, 213, 263, 377, 789, 923, 1131, 2059, 2769, 3419, 6177, 7627, 10257, 18673, 22881, 26767, 56019, 80301, 99151, 242749, 297453, 541517, 728247, 1624551, 7039721, 21119163]

約数ペア:

[(1, 21119163), (3, 7039721), (13, 1624551), (29, 728247), (39, 541517), (71, 297453), (87, 242749), (213, 99151), (263, 80301), (377, 56019), (789, 26767), (923, 22881), (1131, 18673), (2059, 10257), (2769, 7627), (3419, 6177)]