18722984

素因数分解:

$2^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{277}}^1$

素因数の和:378

約数の個数: 64

約数和(自身を含む): 43234560

約数和(自身を除く): 24511576

約数列:

[1, 2, 4, 7, 8, 14, 17, 28, 34, 56, 68, 71, 119, 136, 142, 238, 277, 284, 476, 497, 554, 568, 952, 994, 1108, 1207, 1939, 1988, 2216, 2414, 3878, 3976, 4709, 4828, 7756, 8449, 9418, 9656, 15512, 16898, 18836, 19667, 32963, 33796, 37672, 39334, 65926, 67592, 78668, 131852, 137669, 157336, 263704, 275338, 334339, 550676, 668678, 1101352, 1337356, 2340373, 2674712, 4680746, 9361492, 18722984]

約数ペア:

[(1, 18722984), (2, 9361492), (4, 4680746), (7, 2674712), (8, 2340373), (14, 1337356), (17, 1101352), (28, 668678), (34, 550676), (56, 334339), (68, 275338), (71, 263704), (119, 157336), (136, 137669), (142, 131852), (238, 78668), (277, 67592), (284, 65926), (476, 39334), (497, 37672), (554, 33796), (568, 32963), (952, 19667), (994, 18836), (1108, 16898), (1207, 15512), (1939, 9656), (1988, 9418), (2216, 8449), (2414, 7756), (3878, 4828), (3976, 4709)]