19380515

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{709}}^1$

素因数の和:803

約数の個数: 32

約数和(自身を含む): 29445120

約数和(自身を除く): 10064605

約数列:

[1, 5, 7, 11, 35, 55, 71, 77, 355, 385, 497, 709, 781, 2485, 3545, 3905, 4963, 5467, 7799, 24815, 27335, 38995, 50339, 54593, 251695, 272965, 352373, 553729, 1761865, 2768645, 3876103, 19380515]

約数ペア:

[(1, 19380515), (5, 3876103), (7, 2768645), (11, 1761865), (35, 553729), (55, 352373), (71, 272965), (77, 251695), (355, 54593), (385, 50339), (497, 38995), (709, 27335), (781, 24815), (2485, 7799), (3545, 5467), (3905, 4963)]