21541509

素因数分解:

$3^2\times {\mathrm{11}}^2\times {\mathrm{131}}^1\times {\mathrm{151}}^1$

素因数の和:310

約数の個数: 36

約数和(自身を含む): 34690656

約数和(自身を除く): 13149147

約数列:

[1, 3, 9, 11, 33, 99, 121, 131, 151, 363, 393, 453, 1089, 1179, 1359, 1441, 1661, 4323, 4983, 12969, 14949, 15851, 18271, 19781, 47553, 54813, 59343, 142659, 164439, 178029, 217591, 652773, 1958319, 2393501, 7180503, 21541509]

約数ペア:

[(1, 21541509), (3, 7180503), (9, 2393501), (11, 1958319), (33, 652773), (99, 217591), (121, 178029), (131, 164439), (151, 142659), (363, 59343), (393, 54813), (453, 47553), (1089, 19781), (1179, 18271), (1359, 15851), (1441, 14949), (1661, 12969), (4323, 4983)]