18801918

素因数分解:

$2^1\times 3^2\times {\mathrm{29}}^1\times {\mathrm{181}}^1\times {\mathrm{199}}^1$

素因数の和:417

約数の個数: 48

約数和(自身を含む): 42588000

約数和(自身を除く): 23786082

約数列:

[1, 2, 3, 6, 9, 18, 29, 58, 87, 174, 181, 199, 261, 362, 398, 522, 543, 597, 1086, 1194, 1629, 1791, 3258, 3582, 5249, 5771, 10498, 11542, 15747, 17313, 31494, 34626, 36019, 47241, 51939, 72038, 94482, 103878, 108057, 216114, 324171, 648342, 1044551, 2089102, 3133653, 6267306, 9400959, 18801918]

約数ペア:

[(1, 18801918), (2, 9400959), (3, 6267306), (6, 3133653), (9, 2089102), (18, 1044551), (29, 648342), (58, 324171), (87, 216114), (174, 108057), (181, 103878), (199, 94482), (261, 72038), (362, 51939), (398, 47241), (522, 36019), (543, 34626), (597, 31494), (1086, 17313), (1194, 15747), (1629, 11542), (1791, 10498), (3258, 5771), (3582, 5249)]