21448287

素因数分解:

$3^3\times 7^1\times {\mathrm{283}}^1\times {\mathrm{401}}^1$

素因数の和:700

約数の個数: 32

約数和(自身を含む): 36533760

約数和(自身を除く): 15085473

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 283, 401, 849, 1203, 1981, 2547, 2807, 3609, 5943, 7641, 8421, 10827, 17829, 25263, 53487, 75789, 113483, 340449, 794381, 1021347, 2383143, 3064041, 7149429, 21448287]

約数ペア:

[(1, 21448287), (3, 7149429), (7, 3064041), (9, 2383143), (21, 1021347), (27, 794381), (63, 340449), (189, 113483), (283, 75789), (401, 53487), (849, 25263), (1203, 17829), (1981, 10827), (2547, 8421), (2807, 7641), (3609, 5943)]