21034748

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^2\times {\mathrm{2081}}^1$

素因数の和:2130

約数の個数: 36

約数和(自身を含む): 44421552

約数和(自身を除く): 23386804

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 133, 266, 361, 532, 722, 1444, 2081, 2527, 4162, 5054, 8324, 10108, 14567, 29134, 39539, 58268, 79078, 158156, 276773, 553546, 751241, 1107092, 1502482, 3004964, 5258687, 10517374, 21034748]

約数ペア:

[(1, 21034748), (2, 10517374), (4, 5258687), (7, 3004964), (14, 1502482), (19, 1107092), (28, 751241), (38, 553546), (76, 276773), (133, 158156), (266, 79078), (361, 58268), (532, 39539), (722, 29134), (1444, 14567), (2081, 10108), (2527, 8324), (4162, 5054)]