18005234

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{251}}^1$

素因数の和:386

約数の個数: 32

約数和(自身を含む): 30481920

約数和(自身を除く): 12476686

約数列:

[1, 2, 13, 26, 31, 62, 89, 178, 251, 403, 502, 806, 1157, 2314, 2759, 3263, 5518, 6526, 7781, 15562, 22339, 35867, 44678, 71734, 101153, 202306, 290407, 580814, 692509, 1385018, 9002617, 18005234]

約数ペア:

[(1, 18005234), (2, 9002617), (13, 1385018), (26, 692509), (31, 580814), (62, 290407), (89, 202306), (178, 101153), (251, 71734), (403, 44678), (502, 35867), (806, 22339), (1157, 15562), (2314, 7781), (2759, 6526), (3263, 5518)]