18258639

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{683}}^1$

素因数の和:779

約数の個数: 32

約数和(自身を含む): 29767680

約数和(自身を除く): 11509041

約数列:

[1, 3, 7, 19, 21, 57, 67, 133, 201, 399, 469, 683, 1273, 1407, 2049, 3819, 4781, 8911, 12977, 14343, 26733, 38931, 45761, 90839, 137283, 272517, 320327, 869459, 960981, 2608377, 6086213, 18258639]

約数ペア:

[(1, 18258639), (3, 6086213), (7, 2608377), (19, 960981), (21, 869459), (57, 320327), (67, 272517), (133, 137283), (201, 90839), (399, 45761), (469, 38931), (683, 26733), (1273, 14343), (1407, 12977), (2049, 8911), (3819, 4781)]