172872007

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{103}}^1\times {\mathrm{307}}^1$

素因数の和:499

約数の個数: 32

約数和(自身を含む): 221405184

約数和(自身を除く): 48533177

約数列:

[1, 7, 11, 71, 77, 103, 307, 497, 721, 781, 1133, 2149, 3377, 5467, 7313, 7931, 21797, 23639, 31621, 51191, 80443, 152579, 221347, 239767, 347831, 563101, 1678369, 2245091, 2434817, 15715637, 24696001, 172872007]

約数ペア:

[(1, 172872007), (7, 24696001), (11, 15715637), (71, 2434817), (77, 2245091), (103, 1678369), (307, 563101), (497, 347831), (721, 239767), (781, 221347), (1133, 152579), (2149, 80443), (3377, 51191), (5467, 31621), (7313, 23639), (7931, 21797)]