19913992

素因数分解:

$2^3\times 7^2\times {\mathrm{37}}^1\times {\mathrm{1373}}^1$

素因数の和:1430

約数の個数: 48

約数和(自身を含む): 44641260

約数和(自身を除く): 24727268

約数列:

[1, 2, 4, 7, 8, 14, 28, 37, 49, 56, 74, 98, 148, 196, 259, 296, 392, 518, 1036, 1373, 1813, 2072, 2746, 3626, 5492, 7252, 9611, 10984, 14504, 19222, 38444, 50801, 67277, 76888, 101602, 134554, 203204, 269108, 355607, 406408, 538216, 711214, 1422428, 2489249, 2844856, 4978498, 9956996, 19913992]

約数ペア:

[(1, 19913992), (2, 9956996), (4, 4978498), (7, 2844856), (8, 2489249), (14, 1422428), (28, 711214), (37, 538216), (49, 406408), (56, 355607), (74, 269108), (98, 203204), (148, 134554), (196, 101602), (259, 76888), (296, 67277), (392, 50801), (518, 38444), (1036, 19222), (1373, 14504), (1813, 10984), (2072, 9611), (2746, 7252), (3626, 5492)]