18197385

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{317}}^1$

素因数の和:457

約数の個数: 32

約数和(自身を含む): 30222720

約数和(自身を除く): 12025335

約数列:

[1, 3, 5, 15, 43, 89, 129, 215, 267, 317, 445, 645, 951, 1335, 1585, 3827, 4755, 11481, 13631, 19135, 28213, 40893, 57405, 68155, 84639, 141065, 204465, 423195, 1213159, 3639477, 6065795, 18197385]

約数ペア:

[(1, 18197385), (3, 6065795), (5, 3639477), (15, 1213159), (43, 423195), (89, 204465), (129, 141065), (215, 84639), (267, 68155), (317, 57405), (445, 40893), (645, 28213), (951, 19135), (1335, 13631), (1585, 11481), (3827, 4755)]