21050556

素因数分解:

$2^2\times 3^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{5431}}^1$

素因数の和:5474

約数の個数: 48

約数和(自身を含む): 54754560

約数和(自身を除く): 33704004

約数列:

[1, 2, 3, 4, 6, 12, 17, 19, 34, 38, 51, 57, 68, 76, 102, 114, 204, 228, 323, 646, 969, 1292, 1938, 3876, 5431, 10862, 16293, 21724, 32586, 65172, 92327, 103189, 184654, 206378, 276981, 309567, 369308, 412756, 553962, 619134, 1107924, 1238268, 1754213, 3508426, 5262639, 7016852, 10525278, 21050556]

約数ペア:

[(1, 21050556), (2, 10525278), (3, 7016852), (4, 5262639), (6, 3508426), (12, 1754213), (17, 1238268), (19, 1107924), (34, 619134), (38, 553962), (51, 412756), (57, 369308), (68, 309567), (76, 276981), (102, 206378), (114, 184654), (204, 103189), (228, 92327), (323, 65172), (646, 32586), (969, 21724), (1292, 16293), (1938, 10862), (3876, 5431)]