21192171

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{7057}}^1$

素因数の和:7091

約数の個数: 32

約数和(自身を含む): 37943808

約数和(自身を除く): 16751637

約数列:

[1, 3, 7, 11, 13, 21, 33, 39, 77, 91, 143, 231, 273, 429, 1001, 3003, 7057, 21171, 49399, 77627, 91741, 148197, 232881, 275223, 543389, 642187, 1009151, 1630167, 1926561, 3027453, 7064057, 21192171]

約数ペア:

[(1, 21192171), (3, 7064057), (7, 3027453), (11, 1926561), (13, 1630167), (21, 1009151), (33, 642187), (39, 543389), (77, 275223), (91, 232881), (143, 148197), (231, 91741), (273, 77627), (429, 49399), (1001, 21171), (3003, 7057)]