20218736

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{66509}}^1$

素因数の和:66536

約数の個数: 20

約数和(自身を含む): 41236200

約数和(自身を除く): 21017464

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 152, 304, 66509, 133018, 266036, 532072, 1064144, 1263671, 2527342, 5054684, 10109368, 20218736]

約数ペア:

[(1, 20218736), (2, 10109368), (4, 5054684), (8, 2527342), (16, 1263671), (19, 1064144), (38, 532072), (76, 266036), (152, 133018), (304, 66509)]