17621703

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1$

素因数の和:220

約数の個数: 48

約数和(自身を含む): 29652480

約数和(自身を除く): 12030777

約数列:

[1, 3, 9, 11, 23, 33, 69, 71, 99, 109, 207, 213, 253, 327, 639, 759, 781, 981, 1199, 1633, 2277, 2343, 2507, 3597, 4899, 7029, 7521, 7739, 10791, 14697, 17963, 22563, 23217, 27577, 53889, 69651, 82731, 85129, 161667, 177997, 248193, 255387, 533991, 766161, 1601973, 1957967, 5873901, 17621703]

約数ペア:

[(1, 17621703), (3, 5873901), (9, 1957967), (11, 1601973), (23, 766161), (33, 533991), (69, 255387), (71, 248193), (99, 177997), (109, 161667), (207, 85129), (213, 82731), (253, 69651), (327, 53889), (639, 27577), (759, 23217), (781, 22563), (981, 17963), (1199, 14697), (1633, 10791), (2277, 7739), (2343, 7521), (2507, 7029), (3597, 4899)]