18899188

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{1427}}^1$

素因数の和:1492

約数の個数: 48

約数和(自身を含む): 42223104

約数和(自身を除く): 23323916

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 43, 44, 77, 86, 154, 172, 301, 308, 473, 602, 946, 1204, 1427, 1892, 2854, 3311, 5708, 6622, 9989, 13244, 15697, 19978, 31394, 39956, 61361, 62788, 109879, 122722, 219758, 245444, 429527, 439516, 674971, 859054, 1349942, 1718108, 2699884, 4724797, 9449594, 18899188]

約数ペア:

[(1, 18899188), (2, 9449594), (4, 4724797), (7, 2699884), (11, 1718108), (14, 1349942), (22, 859054), (28, 674971), (43, 439516), (44, 429527), (77, 245444), (86, 219758), (154, 122722), (172, 109879), (301, 62788), (308, 61361), (473, 39956), (602, 31394), (946, 19978), (1204, 15697), (1427, 13244), (1892, 9989), (2854, 6622), (3311, 5708)]