21890288

素因数分解:

$2^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{11497}}^1$

素因数の和:11529

約数の個数: 40

約数和(自身を含む): 51327072

約数和(自身を除く): 29436784

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 34, 56, 68, 112, 119, 136, 238, 272, 476, 952, 1904, 11497, 22994, 45988, 80479, 91976, 160958, 183952, 195449, 321916, 390898, 643832, 781796, 1287664, 1368143, 1563592, 2736286, 3127184, 5472572, 10945144, 21890288]

約数ペア:

[(1, 21890288), (2, 10945144), (4, 5472572), (7, 3127184), (8, 2736286), (14, 1563592), (16, 1368143), (17, 1287664), (28, 781796), (34, 643832), (56, 390898), (68, 321916), (112, 195449), (119, 183952), (136, 160958), (238, 91976), (272, 80479), (476, 45988), (952, 22994), (1904, 11497)]