20850676

素因数分解:

$2^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{509}}^1$

素因数の和:557

約数の個数: 72

約数和(自身を含む): 48837600

約数和(自身を除く): 27986924

約数列:

[1, 2, 4, 7, 11, 14, 19, 22, 28, 38, 44, 49, 76, 77, 98, 133, 154, 196, 209, 266, 308, 418, 509, 532, 539, 836, 931, 1018, 1078, 1463, 1862, 2036, 2156, 2926, 3563, 3724, 5599, 5852, 7126, 9671, 10241, 11198, 14252, 19342, 20482, 22396, 24941, 38684, 39193, 40964, 49882, 67697, 78386, 99764, 106381, 135394, 156772, 212762, 270788, 274351, 425524, 473879, 548702, 744667, 947758, 1097404, 1489334, 1895516, 2978668, 5212669, 10425338, 20850676]

約数ペア:

[(1, 20850676), (2, 10425338), (4, 5212669), (7, 2978668), (11, 1895516), (14, 1489334), (19, 1097404), (22, 947758), (28, 744667), (38, 548702), (44, 473879), (49, 425524), (76, 274351), (77, 270788), (98, 212762), (133, 156772), (154, 135394), (196, 106381), (209, 99764), (266, 78386), (308, 67697), (418, 49882), (509, 40964), (532, 39193), (539, 38684), (836, 24941), (931, 22396), (1018, 20482), (1078, 19342), (1463, 14252), (1862, 11198), (2036, 10241), (2156, 9671), (2926, 7126), (3563, 5852), (3724, 5599)]