19765772

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{73}}^1\times {\mathrm{127}}^1$

素因数の和:258

約数の個数: 48

約数和(自身を含む): 38986752

約数和(自身を除く): 19220980

約数列:

[1, 2, 4, 13, 26, 41, 52, 73, 82, 127, 146, 164, 254, 292, 508, 533, 949, 1066, 1651, 1898, 2132, 2993, 3302, 3796, 5207, 5986, 6604, 9271, 10414, 11972, 18542, 20828, 37084, 38909, 67691, 77818, 120523, 135382, 155636, 241046, 270764, 380111, 482092, 760222, 1520444, 4941443, 9882886, 19765772]

約数ペア:

[(1, 19765772), (2, 9882886), (4, 4941443), (13, 1520444), (26, 760222), (41, 482092), (52, 380111), (73, 270764), (82, 241046), (127, 155636), (146, 135382), (164, 120523), (254, 77818), (292, 67691), (508, 38909), (533, 37084), (949, 20828), (1066, 18542), (1651, 11972), (1898, 10414), (2132, 9271), (2993, 6604), (3302, 5986), (3796, 5207)]