20750778

素因数分解:

$2^1\times 3^2\times {\mathrm{17}}^2\times {\mathrm{3989}}^1$

素因数の和:4031

約数の個数: 36

約数和(自身を含む): 47772270

約数和(自身を除く): 27021492

約数列:

[1, 2, 3, 6, 9, 17, 18, 34, 51, 102, 153, 289, 306, 578, 867, 1734, 2601, 3989, 5202, 7978, 11967, 23934, 35901, 67813, 71802, 135626, 203439, 406878, 610317, 1152821, 1220634, 2305642, 3458463, 6916926, 10375389, 20750778]

約数ペア:

[(1, 20750778), (2, 10375389), (3, 6916926), (6, 3458463), (9, 2305642), (17, 1220634), (18, 1152821), (34, 610317), (51, 406878), (102, 203439), (153, 135626), (289, 71802), (306, 67813), (578, 35901), (867, 23934), (1734, 11967), (2601, 7978), (3989, 5202)]