25990558

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{211}}^1\times {\mathrm{509}}^1$

素因数の和:744

約数の個数: 24

約数和(自身を含む): 43139880

約数和(自身を除く): 17149322

約数列:

[1, 2, 11, 22, 121, 211, 242, 422, 509, 1018, 2321, 4642, 5599, 11198, 25531, 51062, 61589, 107399, 123178, 214798, 1181389, 2362778, 12995279, 25990558]

約数ペア:

[(1, 25990558), (2, 12995279), (11, 2362778), (22, 1181389), (121, 214798), (211, 123178), (242, 107399), (422, 61589), (509, 51062), (1018, 25531), (2321, 11198), (4642, 5599)]