21861894

素因数分解:

$2^1\times 3^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1$

素因数の和:205

約数の個数: 64

約数和(自身を含む): 48591360

約数和(自身を除く): 26729466

約数列:

[1, 2, 3, 6, 19, 37, 38, 57, 71, 73, 74, 111, 114, 142, 146, 213, 219, 222, 426, 438, 703, 1349, 1387, 1406, 2109, 2627, 2698, 2701, 2774, 4047, 4161, 4218, 5183, 5254, 5402, 7881, 8094, 8103, 8322, 10366, 15549, 15762, 16206, 31098, 49913, 51319, 98477, 99826, 102638, 149739, 153957, 191771, 196954, 295431, 299478, 307914, 383542, 575313, 590862, 1150626, 3643649, 7287298, 10930947, 21861894]

約数ペア:

[(1, 21861894), (2, 10930947), (3, 7287298), (6, 3643649), (19, 1150626), (37, 590862), (38, 575313), (57, 383542), (71, 307914), (73, 299478), (74, 295431), (111, 196954), (114, 191771), (142, 153957), (146, 149739), (213, 102638), (219, 99826), (222, 98477), (426, 51319), (438, 49913), (703, 31098), (1349, 16206), (1387, 15762), (1406, 15549), (2109, 10366), (2627, 8322), (2698, 8103), (2701, 8094), (2774, 7881), (4047, 5402), (4161, 5254), (4218, 5183)]