20189628

素因数分解:

$2^2\times 3^3\times {\mathrm{19}}^1\times {\mathrm{9839}}^1$

素因数の和:9871

約数の個数: 48

約数和(自身を含む): 55104000

約数和(自身を除く): 34914372

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 27, 36, 38, 54, 57, 76, 108, 114, 171, 228, 342, 513, 684, 1026, 2052, 9839, 19678, 29517, 39356, 59034, 88551, 118068, 177102, 186941, 265653, 354204, 373882, 531306, 560823, 747764, 1062612, 1121646, 1682469, 2243292, 3364938, 5047407, 6729876, 10094814, 20189628]

約数ペア:

[(1, 20189628), (2, 10094814), (3, 6729876), (4, 5047407), (6, 3364938), (9, 2243292), (12, 1682469), (18, 1121646), (19, 1062612), (27, 747764), (36, 560823), (38, 531306), (54, 373882), (57, 354204), (76, 265653), (108, 186941), (114, 177102), (171, 118068), (228, 88551), (342, 59034), (513, 39356), (684, 29517), (1026, 19678), (2052, 9839)]