18163638

素因数分解:

$2^1\times 3^2\times {\mathrm{97}}^1\times {\mathrm{101}}^1\times {\mathrm{103}}^1$

素因数の和:309

約数の個数: 48

約数和(自身を含む): 40543776

約数和(自身を除く): 22380138

約数列:

[1, 2, 3, 6, 9, 18, 97, 101, 103, 194, 202, 206, 291, 303, 309, 582, 606, 618, 873, 909, 927, 1746, 1818, 1854, 9797, 9991, 10403, 19594, 19982, 20806, 29391, 29973, 31209, 58782, 59946, 62418, 88173, 89919, 93627, 176346, 179838, 187254, 1009091, 2018182, 3027273, 6054546, 9081819, 18163638]

約数ペア:

[(1, 18163638), (2, 9081819), (3, 6054546), (6, 3027273), (9, 2018182), (18, 1009091), (97, 187254), (101, 179838), (103, 176346), (194, 93627), (202, 89919), (206, 88173), (291, 62418), (303, 59946), (309, 58782), (582, 31209), (606, 29973), (618, 29391), (873, 20806), (909, 19982), (927, 19594), (1746, 10403), (1818, 9991), (1854, 9797)]