135290421

素因数分解:

$3^2\times 7^2\times {\mathrm{306781}}^1$

素因数の和:306801

約数の個数: 18

約数和(自身を含む): 227325462

約数和(自身を除く): 92035041

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 306781, 920343, 2147467, 2761029, 6442401, 15032269, 19327203, 45096807, 135290421]

約数ペア:

[(1, 135290421), (3, 45096807), (7, 19327203), (9, 15032269), (21, 6442401), (49, 2761029), (63, 2147467), (147, 920343), (441, 306781)]