20988882

素因数分解:

$2^1\times 3^5\times {\mathrm{19}}^1\times {\mathrm{2273}}^1$

素因数の和:2309

約数の個数: 48

約数和(自身を含む): 49664160

約数和(自身を除く): 28675278

約数列:

[1, 2, 3, 6, 9, 18, 19, 27, 38, 54, 57, 81, 114, 162, 171, 243, 342, 486, 513, 1026, 1539, 2273, 3078, 4546, 4617, 6819, 9234, 13638, 20457, 40914, 43187, 61371, 86374, 122742, 129561, 184113, 259122, 368226, 388683, 552339, 777366, 1104678, 1166049, 2332098, 3498147, 6996294, 10494441, 20988882]

約数ペア:

[(1, 20988882), (2, 10494441), (3, 6996294), (6, 3498147), (9, 2332098), (18, 1166049), (19, 1104678), (27, 777366), (38, 552339), (54, 388683), (57, 368226), (81, 259122), (114, 184113), (162, 129561), (171, 122742), (243, 86374), (342, 61371), (486, 43187), (513, 40914), (1026, 20457), (1539, 13638), (2273, 9234), (3078, 6819), (4546, 4617)]