20968578

素因数分解:

$2^1\times 3^3\times {\mathrm{89}}^1\times {\mathrm{4363}}^1$

素因数の和:4463

約数の個数: 32

約数和(自身を含む): 47131200

約数和(自身を除く): 26162622

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 89, 178, 267, 534, 801, 1602, 2403, 4363, 4806, 8726, 13089, 26178, 39267, 78534, 117801, 235602, 388307, 776614, 1164921, 2329842, 3494763, 6989526, 10484289, 20968578]

約数ペア:

[(1, 20968578), (2, 10484289), (3, 6989526), (6, 3494763), (9, 2329842), (18, 1164921), (27, 776614), (54, 388307), (89, 235602), (178, 117801), (267, 78534), (534, 39267), (801, 26178), (1602, 13089), (2403, 8726), (4363, 4806)]