18308983

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{197}}^1$

素因数の和:303

約数の個数: 32

約数和(自身を含む): 24634368

約数和(自身を除く): 6325385

約数列:

[1, 7, 11, 17, 71, 77, 119, 187, 197, 497, 781, 1207, 1309, 1379, 2167, 3349, 5467, 8449, 13277, 13987, 15169, 23443, 36839, 92939, 97909, 153857, 237779, 257873, 1076999, 1664453, 2615569, 18308983]

約数ペア:

[(1, 18308983), (7, 2615569), (11, 1664453), (17, 1076999), (71, 257873), (77, 237779), (119, 153857), (187, 97909), (197, 92939), (497, 36839), (781, 23443), (1207, 15169), (1309, 13987), (1379, 13277), (2167, 8449), (3349, 5467)]