21738584

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{20431}}^1$

素因数の和:20463

約数の個数: 32

約数和(自身を含む): 49036800

約数和(自身を除く): 27298216

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 38, 56, 76, 133, 152, 266, 532, 1064, 20431, 40862, 81724, 143017, 163448, 286034, 388189, 572068, 776378, 1144136, 1552756, 2717323, 3105512, 5434646, 10869292, 21738584]

約数ペア:

[(1, 21738584), (2, 10869292), (4, 5434646), (7, 3105512), (8, 2717323), (14, 1552756), (19, 1144136), (28, 776378), (38, 572068), (56, 388189), (76, 286034), (133, 163448), (152, 143017), (266, 81724), (532, 40862), (1064, 20431)]